Errors while moving react project into client folder - node.js

So the time has come to build the backend of the application. But I'm having a lot of errors after I moved the project into a client folder as suggested in a few youtube videos. And I have also created a server folder which is empty for now. How can I solve this?
I really have no idea on where to start, or what to do sadly.
this is a list of errors:
Compiled with problems:
ERROR in ./node_modules/body-parser/lib/read.js 20:11-26
Module not found: Error: Can't resolve 'zlib' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\body-parser\lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "zlib": require.resolve("browserify-zlib") }'
- install 'browserify-zlib'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "zlib": false }
ERROR in ./node_modules/body-parser/lib/types/urlencoded.js 217:12-34
Module not found: Error: Can't resolve 'querystring' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\body-parser\lib\types'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "querystring": require.resolve("querystring-es3") }'
- install 'querystring-es3'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "querystring": false }
ERROR in ./node_modules/content-disposition/index.js 19:15-39
Module not found: Error: Can't resolve 'path' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\content-disposition'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "path": false }
ERROR in ./node_modules/cookie-signature/index.js 4:13-30
Module not found: Error: Can't resolve 'crypto' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\cookie-signature'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "crypto": require.resolve("crypto-browserify") }'
- install 'crypto-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "crypto": false }
ERROR in ./node_modules/destroy/index.js 12:17-41
Module not found: Error: Can't resolve 'fs' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\destroy'
ERROR in ./node_modules/destroy/index.js 14:13-30
Module not found: Error: Can't resolve 'stream' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\destroy'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "stream": require.resolve("stream-browserify") }'
- install 'stream-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "stream": false }
ERROR in ./node_modules/dotenv/lib/main.js 1:11-24
Module not found: Error: Can't resolve 'fs' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\dotenv\lib'
ERROR in ./node_modules/dotenv/lib/main.js 3:13-28
Module not found: Error: Can't resolve 'path' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\dotenv\lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "path": false }
ERROR in ./node_modules/dotenv/lib/main.js 5:11-24
Module not found: Error: Can't resolve 'os' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\dotenv\lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "os": require.resolve("os-browserify/browser") }'
- install 'os-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "os": false }
ERROR in ./node_modules/etag/index.js 18:13-30
Module not found: Error: Can't resolve 'crypto' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\etag'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "crypto": require.resolve("crypto-browserify") }'
- install 'crypto-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "crypto": false }
ERROR in ./node_modules/etag/index.js 20:12-31
Module not found: Error: Can't resolve 'fs' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\etag'
ERROR in ./node_modules/express/lib/application.js 28:11-26
Module not found: Error: Can't resolve 'http' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\express\lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "http": require.resolve("stream-http") }'
- install 'stream-http'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "http": false }
ERROR in ./node_modules/express/lib/application.js 42:14-37
Module not found: Error: Can't resolve 'path' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\express\lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "path": false }
ERROR in ./node_modules/express/lib/request.js 18:11-30
Module not found: Error: Can't resolve 'net' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\express\lib'
ERROR in ./node_modules/express/lib/request.js 22:11-26
Module not found: Error: Can't resolve 'http' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\express\lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "http": require.resolve("stream-http") }'
- install 'stream-http'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "http": false }
ERROR in ./node_modules/express/lib/response.js 23:11-26
Module not found: Error: Can't resolve 'http' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\express\lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "http": require.resolve("stream-http") }'
- install 'stream-http'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "http": false }
ERROR in ./node_modules/express/lib/response.js 29:11-26
Module not found: Error: Can't resolve 'path' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\express\lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "path": false }
ERROR in ./node_modules/express/lib/utils.js 31:18-40
Module not found: Error: Can't resolve 'querystring' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\express\lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "querystring": require.resolve("querystring-es3") }'
- install 'querystring-es3'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "querystring": false }
ERROR in ./node_modules/express/lib/view.js 16:11-26
Module not found: Error: Can't resolve 'path' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\express\lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "path": false }
ERROR in ./node_modules/express/lib/view.js 18:9-22
Module not found: Error: Can't resolve 'fs' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\express\lib'
ERROR in ./node_modules/mime-types/index.js 15:14-37
Module not found: Error: Can't resolve 'path' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\mime-types'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "path": false }
ERROR in ./node_modules/mime/mime.js 1:11-26
Module not found: Error: Can't resolve 'path' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\mime'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "path": false }
ERROR in ./node_modules/mime/mime.js 3:9-22
Module not found: Error: Can't resolve 'fs' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\mime'
ERROR in ./node_modules/parseurl/index.js 13:10-24
Module not found: Error: Can't resolve 'url' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\parseurl'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "url": require.resolve("url/") }'
- install 'url'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "url": false }
ERROR in ./node_modules/safe-buffer/index.js 4:13-30
Module not found: Error: Can't resolve 'buffer' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\safe-buffer'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "buffer": require.resolve("buffer/") }'
- install 'buffer'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "buffer": false }
ERROR in ./node_modules/safer-buffer/safer.js 4:13-30
Module not found: Error: Can't resolve 'buffer' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\safer-buffer'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "buffer": require.resolve("buffer/") }'
- install 'buffer'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "buffer": false }
ERROR in ./node_modules/send/index.js 29:9-22
Module not found: Error: Can't resolve 'fs' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\send'
ERROR in ./node_modules/send/index.js 39:11-26
Module not found: Error: Can't resolve 'path' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\send'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "path": false }
ERROR in ./node_modules/send/index.js 43:13-30
Module not found: Error: Can't resolve 'stream' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\send'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "stream": require.resolve("stream-browserify") }'
- install 'stream-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "stream": false }
ERROR in ./node_modules/send/index.js 45:11-26
Module not found: Error: Can't resolve 'util' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\send'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "util": require.resolve("util/") }'
- install 'util'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "util": false }
ERROR in ./node_modules/serve-static/index.js 20:14-37
Module not found: Error: Can't resolve 'path' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\serve-static'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "path": false }
ERROR in ./node_modules/serve-static/index.js 24:10-24
Module not found: Error: Can't resolve 'url' in 'C:\Users\Serma\Desktop\Tribeto\Tribeto\client\node_modules\serve-static'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "url": require.resolve("url/") }'
- install 'url'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "url": false }

Uninstall your node modules and package lock JSON file
Do editing in the path whatever you want, run npm install and sleep relaxed 😌
Btw where are you deploying backend because I also want to deploy the backend

Related

How to build web-end client using Node.JS to connect to Hyperledger Gateway

I am having a difficult time building a client web interface for a Hyperledger system. From what I can tell, I must do the following import on my Node script:
import { Gateway } from 'fabric-network';
The import works on Node scripts but throws and error when built alongside React. Looks like an error in regards to something called a pollyfill. I am unfamiliar with this terminology. The errors which are shown in rendering as follows:
ERROR in ./node_modules/#grpc/grpc-js/build/src/call-stream.js 24:14-30
Module not found: Error: Can't resolve 'http2' in '/home/tylr/Documents/energychain-login/node_modules/#grpc/grpc-js/build/src'
ERROR in ./node_modules/#grpc/grpc-js/build/src/call-stream.js 26:11-24
Module not found: Error: Can't resolve 'os' in '/home/tylr/Documents/energychain-login/node_modules/#grpc/grpc-js/build/src'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "os": require.resolve("os-browserify/browser") }'
- install 'os-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "os": false }
ERROR in ./node_modules/#grpc/grpc-js/build/src/call.js 26:17-34
Module not found: Error: Can't resolve 'stream' in '/home/tylr/Documents/energychain-login/node_modules/#grpc/grpc-js/build/src'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "stream": require.resolve("stream-browserify") }'
- install 'stream-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "stream": false }
ERROR in ./node_modules/#grpc/grpc-js/build/src/channel-credentials.js 24:14-28
Module not found: Error: Can't resolve 'tls' in '/home/tylr/Documents/energychain-login/node_modules/#grpc/grpc-js/build/src'
ERROR in ./node_modules/#grpc/grpc-js/build/src/channelz.js 24:14-28
Module not found: Error: Can't resolve 'net' in '/home/tylr/Documents/energychain-login/node_modules/#grpc/grpc-js/build/src'
ERROR in ./node_modules/#grpc/grpc-js/build/src/compression-filter.js 24:13-28
Module not found: Error: Can't resolve 'zlib' in '/home/tylr/Documents/energychain-login/node_modules/#grpc/grpc-js/build/src'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "zlib": require.resolve("browserify-zlib") }'
- install 'browserify-zlib'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "zlib": false }
ERROR in ./node_modules/#grpc/grpc-js/build/src/http_proxy.js 30:13-28
Module not found: Error: Can't resolve 'http' in '/home/tylr/Documents/energychain-login/node_modules/#grpc/grpc-js/build/src'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "http": require.resolve("stream-http") }'
- install 'stream-http'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "http": false }
ERROR in ./node_modules/#grpc/grpc-js/build/src/http_proxy.js 32:12-26
Module not found: Error: Can't resolve 'tls' in '/home/tylr/Documents/energychain-login/node_modules/#grpc/grpc-js/build/src'
ERROR in ./node_modules/#grpc/grpc-js/build/src/http_proxy.js 40:14-28
Module not found: Error: Can't resolve 'url' in '/home/tylr/Documents/energychain-login/node_modules/#grpc/grpc-js/build/src'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "url": require.resolve("url/") }'
- install 'url'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "url": false }
ERROR in ./node_modules/#grpc/grpc-js/build/src/resolver-dns.js 25:12-26
Module not found: Error: Can't resolve 'dns' in '/home/tylr/Documents/energychain-login/node_modules/#grpc/grpc-js/build/src'
ERROR in ./node_modules/#grpc/grpc-js/build/src/resolver-dns.js 27:13-28
Module not found: Error: Can't resolve 'util' in '/home/tylr/Documents/energychain-login/node_modules/#grpc/grpc-js/build/src'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "util": require.resolve("util/") }'
- install 'util'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "util": false }
ERROR in ./node_modules/#grpc/grpc-js/build/src/resolver-dns.js 41:14-28
Module not found: Error: Can't resolve 'net' in '/home/tylr/Documents/energychain-login/node_modules/#grpc/grpc-js/build/src'
ERROR in ./node_modules/#grpc/grpc-js/build/src/resolver-ip.js 23:14-28
Module not found: Error: Can't resolve 'net' in '/home/tylr/Documents/energychain-login/node_modules/#grpc/grpc-js/build/src'
ERROR in ./node_modules/#grpc/grpc-js/build/src/server-call.js 26:14-30
Module not found: Error: Can't resolve 'http2' in '/home/tylr/Documents/energychain-login/node_modules/#grpc/grpc-js/build/src'
ERROR in ./node_modules/#grpc/grpc-js/build/src/server-call.js 28:17-34
Module not found: Error: Can't resolve 'stream' in '/home/tylr/Documents/energychain-login/node_modules/#grpc/grpc-js/build/src'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "stream": require.resolve("stream-browserify") }'
- install 'stream-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "stream": false }
ERROR in ./node_modules/#grpc/grpc-js/build/src/server-call.js 30:13-28
Module not found: Error: Can't resolve 'zlib' in '/home/tylr/Documents/energychain-login/node_modules/#grpc/grpc-js/build/src'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "zlib": require.resolve("browserify-zlib") }'
- install 'browserify-zlib'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "zlib": false }
Any help would be appreciated. Preferably I would want to be able to make a connection as a client from a web-end to the gateway. And retrieve client keys from a database and set as ENV variables, at least during this preliminary stage of development.
Is this the right approach, or should the gateway be connected to a REST API which then the web end connects to.
Hopefully there is enough information here to indicate the issues I am facing, I will try to be active on checking this thread and look forward to getting responses.
The fabric-node-sdk isn't tested and has no designs to be used directly within a browser so I'm not surprised you are having issues trying to make it work. I think you would be better off running a rest server that performs the fabric interactions and have your web application interact through that. There is an example of a rest server in the fabric-samples repo here that may help
https://github.com/hyperledger/fabric-samples/tree/main/asset-transfer-basic/rest-api-typescript

micromatch not working in react - ERROR in ./node_modules/fill-range/index.js 9:13-28 - BREAKING CHANGE: webpack < 5 used to include polyfills

I am trying to use the micromatch package (https://github.com/micromatch/micromatch) in my react application but am getting an error. The error can be reproduced my creating a default react application (npx create-react-app my-app) and after installing micromatch and pasting
const micromatch = require('micromatch');
you will get the error after trying to start the application. React will say compiled with problems - here are the errors:
ERROR in ./node_modules/fill-range/index.js 9:13-28
Module not found: Error: Can't resolve 'util' in 'C:\Users\bta\Documents\ReactDashboard\micromatch\my-app\node_modules\fill-range'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "util": require.resolve("util/") }'
- install 'util'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "util": false }
ERROR in ./node_modules/micromatch/index.js 3:13-28
Module not found: Error: Can't resolve 'util' in 'C:\Users\bta\Documents\ReactDashboard\micromatch\my-app\node_modules\micromatch'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "util": require.resolve("util/") }'
- install 'util'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "util": false }
ERROR in ./node_modules/picomatch/lib/constants.js 3:13-28
Module not found: Error: Can't resolve 'path' in 'C:\Users\bta\Documents\ReactDashboard\micromatch\my-app\node_modules\picomatch\lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "path": false }
ERROR in ./node_modules/picomatch/lib/picomatch.js 3:13-28
Module not found: Error: Can't resolve 'path' in 'C:\Users\bta\Documents\ReactDashboard\micromatch\my-app\node_modules\picomatch\lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "path": false }
ERROR in ./node_modules/picomatch/lib/utils.js 3:13-28
Module not found: Error: Can't resolve 'path' in 'C:\Users\bta\Documents\ReactDashboard\micromatch\my-app\node_modules\picomatch\lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "path": false }
This is the error shown in the browser console:
Uncaught Error: Cannot find module 'util'
at webpackMissingModule (index.js:3:1)
at ./node_modules/micromatch/index.js (index.js:3:1)
at options.factory (react refresh:6:1)
at __webpack_require__ (bootstrap:24:1)
at fn (hot module replacement:62:1)
at ./src/App.js (App.js:1:1)
at options.factory (react refresh:6:1)
at __webpack_require__ (bootstrap:24:1)
at fn (hot module replacement:62:1)
at ./src/index.js (App.js:14:1)

Compiling React component with rollup is returning webpack error

I'm trying to compile a React jsx components throught Rollup.js to fill my components library in commonjs.
This is my rollup configuration
import peerDepsExternal from 'rollup-plugin-peer-deps-external';
import resolve from '#rollup/plugin-node-resolve';
import babel from '#rollup/plugin-babel';
import commonjs from '#rollup/plugin-commonjs';
import postcss from 'rollup-plugin-postcss';
import image from '#rollup/plugin-image';
import json from '#rollup/plugin-json';
export default {
input: ['./src/xxx.jsx'],
output: [
{
dir: './public/build/lib/xxx/commonjs/',
format: 'esm',
sourcemap: true,
},
],
plugins: [
peerDepsExternal(),
resolve({
browser: true,
preferBuiltins: false,
extensions: ['.mjs', '.js', '.json', '.node', '.jsx', '.ts', '.tsx'],
}),
babel({
exclude: './node_modules/**',
presets: ['#babel/preset-env', '#babel/preset-react'],
plugins: ['#babel/plugin-transform-runtime'],
babelHelpers: 'runtime',
}),
commonjs(),
postcss({
extensions: ['.css'],
}),
image(),
json(),
],
};
On rollup compilation i get no error, but just this warning
(!) Circular dependencies node_modules/#rjsf/core/dist/es/utils.js ->
node_modules/#rjsf/core/dist/es/components/fields/index.js ->
node_modules/#rjsf/core/dist/es/components/fields/ArrayField.js ->
node_modules/#rjsf/core/dist/es/utils.js
node_modules/#rjsf/core/dist/es/utils.js ->
node_modules/#rjsf/core/dist/es/components/fields/index.js ->
node_modules/#rjsf/core/dist/es/components/fields/BooleanField.js ->
node_modules/#rjsf/core/dist/es/utils.js
node_modules/#rjsf/core/dist/es/utils.js ->
node_modules/#rjsf/core/dist/es/components/fields/index.js ->
node_modules/#rjsf/core/dist/es/components/fields/MultiSchemaField.js
-> node_modules/#rjsf/core/dist/es/utils.js ...and 19 more
But when i want to import my component into another app, i have thoses errors concerning webpack but from where it come from ?
Compiled with problems:X
ERROR in ./node_modules/#xxx/xxx/xxx.js 1:0-32
Module not found: Error: Can't resolve 'http' in
'C:\dev\Test\my-app\node_modules#xxx\xxx'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js
core modules by default. This is no longer the case. Verify if you
need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
add a fallback 'resolve.fallback: { "http": require.resolve("stream-http") }'
install 'stream-http' If you don't want to include a polyfill, you can use an empty module like this: resolve.fallback: { "http": false
}
ERROR in ./node_modules/#xxx/xxx/xxx.js 2:0-33
Module not found: Error: Can't resolve 'https' in
'C:\dev\Test\my-app\node_modules#xxx\xxx'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js
core modules by default. This is no longer the case. Verify if you
need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
add a fallback 'resolve.fallback: { "https": require.resolve("https-browserify") }'
install 'https-browserify' If you don't want to include a polyfill, you can use an empty module like this: resolve.fallback: { "https":
false }
ERROR in ./node_modules/#xxx/xxx/xxx.js 3:0-31
Module not found: Error: Can't resolve 'url' in
'C:\dev\Test\my-app\node_modules#xxx\xxx'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js
core modules by default. This is no longer the case. Verify if you
need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
add a fallback 'resolve.fallback: { "url": require.resolve("url/") }'
install 'url' If you don't want to include a polyfill, you can use an empty module like this: resolve.fallback: { "url": false }
ERROR in ./node_modules/#xxx/xxx/xxx.js 4:0-34
Module not found: Error: Can't resolve 'stream' in
'C:\dev\Test\my-app\node_modules#xxx\xxx'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js
core modules by default. This is no longer the case. Verify if you
need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
add a fallback 'resolve.fallback: { "stream": require.resolve("stream-browserify") }'
install 'stream-browserify' If you don't want to include a polyfill, you can use an empty module like this: resolve.fallback: {
"stream": false }
ERROR in ./node_modules/#xxx/xxx/xxx.js 5:0-32
Module not found: Error: Can't resolve 'assert' in
'C:\dev\Test\my-app\node_modules#xxx\xxx'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js
core modules by default. This is no longer the case. Verify if you
need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
add a fallback 'resolve.fallback: { "assert": require.resolve("assert/") }'
install 'assert' If you don't want to include a polyfill, you can use an empty module like this: resolve.fallback: { "assert": false }
ERROR in ./node_modules/#xxx/xxx/xxx.js 6:0-30
Module not found: Error: Can't resolve 'zlib' in
'C:\dev\Test\my-app\node_modules#xxx\xxx'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js
core modules by default. This is no longer the case. Verify if you
need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
add a fallback 'resolve.fallback: { "zlib": require.resolve("browserify-zlib") }'
install 'browserify-zlib' If you don't want to include a polyfill, you can use an empty module like this: resolve.fallback: { "zlib":
false }
ERROR in ./node_modules/#xxx/xxx/xxx.js 7:0-28
Module not found: Error: Can't resolve 'crypto' in
'C:\dev\Test\my-app\node_modules#xxx\xxx'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js
core modules by default. This is no longer the case. Verify if you
need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
add a fallback 'resolve.fallback: { "crypto": require.resolve("crypto-browserify") }'
install 'crypto-browserify' If you don't want to include a polyfill, you can use an empty module like this: resolve.fallback: {
"crypto": false }
ERROR in ./node_modules/#xxx/xxx/xxx.js 8:0-30
Module not found: Error: Can't resolve 'fs' in
'C:\dev\Test\my-app\node_modules#xxx\xxx'
ERROR in ./node_modules/#xxx/xxx/xxx.js 9:0-32
Module not found: Error: Can't resolve 'path' in
'C:\dev\Test\my-app\node_modules#xxx\xxx'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js
core modules by default. This is no longer the case. Verify if you
need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
install 'path-browserify' If you don't want to include a polyfill, you can use an empty module like this: resolve.fallback: { "path":
false }
ERROR in ./node_modules/#xxx/xxx/xxx.js 10:0-34
Module not found: Error: Can't resolve 'module' in
'C:\dev\Test\my-app\node_modules#xxx\xxx'
ERROR in ./node_modules/#xxx/xxx/xxx.js 12:0-34
Module not found: Error: Can't resolve 'buffer' in
'C:\dev\Test\my-app\node_modules#xxx\xxx'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js
core modules by default. This is no longer the case. Verify if you
need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
add a fallback 'resolve.fallback: { "buffer": require.resolve("buffer/") }'
install 'buffer' If you don't want to include a polyfill, you can use an empty module like this: resolve.fallback: { "buffer": false }
ERROR in ./node_modules/#xxx/xxx/xxx.js 13:0-32
Module not found: Error: Can't resolve 'util' in
'C:\dev\Test\my-app\node_modules#xxx\xxx'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js
core modules by default. This is no longer the case. Verify if you
need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
add a fallback 'resolve.fallback: { "util": require.resolve("util/") }'
install 'util' If you don't want to include a polyfill, you can use an empty module like this: resolve.fallback: { "util": false }
ERROR in ./node_modules/#xxx/xxx/xxx.js
123470:44-83
Module not found: Error: Can't resolve '../include/module.js' in
'C:\dev\Test\my-app\node_modules#xxx\xxx'
ERROR in ./node_modules/#xxx/xxx/xxx.js
123471:44-83
Module not found: Error: Can't resolve '../include/action.js' in
'C:\dev\Test\my-app\node_modules#xxx\xxx'
ERROR in ./node_modules/#xxx/xxx/xxx.js
162102:17-48
Module not found: Error: Can't resolve 'ajv-i18n/localize/fr' in
'C:\dev\Test\my-app\node_modules#xxx\xxx'
ERROR in
./node_modules/string_decoder/node_modules/safe-buffer/index.js
4:13-30
Module not found: Error: Can't resolve 'buffer' in
'C:\dev\Test\my-app\node_modules\string_decoder\node_modules\safe-buffer'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js
core modules by default. This is no longer the case. Verify if you
need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
add a fallback 'resolve.fallback: { "buffer": require.resolve("buffer/") }'
install 'buffer' If you don't want to include a polyfill, you can use an empty module like this: resolve.fallback: { "buffer": false }
Try to replace imported #rollup/node-plugin-resolve
from :
import resolve from '#rollup/plugin-node-resolve';
To:
import {nodeResolve} from '#rollup/plugin-node-resolve';
And replace it in plugins:
nodeResolve({
extensions: [".js", ".jsx"],
}),
It's worked for me.
I was able to fix this by adding resolve: ({ browser : true }) to rollup.config.js which I see you already have added.
Another solution that worked for me was to use:
https://github.com/FredKSchott/rollup-plugin-polyfill-node
To use this plugin modify your rollup.config.js as follows
import nodePolyfills from 'rollup-plugin-polyfill-node';
...
export default {
...
resolve: ({
preferBuiltins: false
}),
...
plugins: [
nodePolyfills()
],
...
};
This will include these "missing" libraries in your bundle.

Module not found: Error: Can't resolve 'crypto', 'http', 'https' in

I'm trying this tutorial: https://www.dappuniversity.com/articles/ethereum-dapp-react-tutorial
Creating my project with
create-react-app eth-todo-list-react
installing web3 with
npm i web3
and adding
import Web3 from 'web3';
in the App.js file. I get the following three problems.
ERROR in ./node_modules/eth-lib/lib/bytes.js 9:193-227
Module not found: Error: Can't resolve 'crypto' in ‚project_path/node_modules/eth-lib/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "crypto": require.resolve("crypto-browserify") }'
- install 'crypto-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "crypto": false }
ERROR in ./node_modules/web3-eth-accounts/lib/index.js 31:74-91
Module not found: Error: Can't resolve 'crypto' in project_path/node_modules/web3-eth-accounts/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "crypto": require.resolve("crypto-browserify") }'
- install 'crypto-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "crypto": false }
ERROR in ./node_modules/web3-eth-accounts/node_modules/eth-lib/lib/bytes.js 7:193-227
Module not found: Error: Can't resolve 'crypto' in 'project_path/node_modules/web3-eth-accounts/node_modules/eth-lib/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "crypto": require.resolve("crypto-browserify") }'
- install 'crypto-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "crypto": false }
ERROR in ./node_modules/web3-providers-http/lib/index.js 30:11-26
Module not found: Error: Can't resolve 'http' in 'project_path/node_modules/web3-providers-http/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "http": require.resolve("stream-http") }'
- install 'stream-http'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "http": false }
ERROR in ./node_modules/web3-providers-http/lib/index.js 32:12-28
Module not found: Error: Can't resolve 'https' in 'project_path/node_modules/web3-providers-http/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "https": require.resolve("https-browserify") }'
- install 'https-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "https": false }
ERROR in ./node_modules/xhr2-cookies/dist/xml-http-request.js 37:11-26
Module not found: Error: Can't resolve 'http' in 'project_path/node_modules/xhr2-cookies/dist'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "http": require.resolve("stream-http") }'
- install 'stream-http'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "http": false }
ERROR in ./node_modules/xhr2-cookies/dist/xml-http-request.js 39:12-28
Module not found: Error: Can't resolve 'https' in 'project_path/node_modules/xhr2-cookies/dist'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "https": require.resolve("https-browserify") }'
- install 'https-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "https": false }
Yes I already tried the stack overflow answers.
Adding
"browser": {
"crypto": false,
"http": false,
"https": false
},
after the "dependencies" inside the package.json change nothing.
I don't have a tsconfig.json and webpack config file either.
Installing with
npm i crypto
and installing the packages from the error message changes nothing.
I have node v17.6.0 and npm version 8.5.1.
I am on macOS.
Please, I'm getting desperate.
The only thing I don't know how to check is
- add a fallback 'resolve.fallback: { "crypto": require.resolve("crypto-browserify") }'
and
resolve.fallback: { "crypto": false }
But I don't have a webpack.config.js file.

Issues Running react project, SEVERAL module not found errors

so I'm trying to run this one react project (one that I've run SEVERAL times & has worked SEVERAL TIMES before), but for some reason, it just doesn't work and just won't give me a break. I'm struggling to see why I'm getting such a ridiculous amount of errors. I have the most up to date npm version installed I run 'npm install' command prior. Please help me out if you can. Thank you.
Compiled with problems:X
ERROR in ./node_modules/cipher-base/index.js 3:16-43
Module not found: Error: Can't resolve 'stream' in '/Users/tazar/nft-minter-tutorial/minter-starter-files/node_modules/cipher-base'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "stream": require.resolve("stream-browserify") }'
- install 'stream-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "stream": false }
ERROR in ./node_modules/dotenv/lib/main.js 24:11-24
Module not found: Error: Can't resolve 'fs' in '/Users/tazar/nft-minter-tutorial/minter-starter-files/node_modules/dotenv/lib'
ERROR in ./node_modules/dotenv/lib/main.js 26:13-28
Module not found: Error: Can't resolve 'path' in '/Users/tazar/nft-minter-tutorial/minter-starter-files/node_modules/dotenv/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "path": false }
ERROR in ./node_modules/eth-lib/lib/bytes.js 9:193-227
Module not found: Error: Can't resolve 'crypto' in '/Users/tazar/nft-minter-tutorial/minter-starter-files/node_modules/eth-lib/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "crypto": require.resolve("crypto-browserify") }'
- install 'crypto-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "crypto": false }
ERROR in ./node_modules/ethereumjs-util/dist.browser/account.js 39:31-48
Module not found: Error: Can't resolve 'assert' in '/Users/tazar/nft-minter-tutorial/minter-starter-files/node_modules/ethereumjs-util/dist.browser'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "assert": require.resolve("assert/") }'
- install 'assert'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "assert": false }
ERROR in ./node_modules/ethereumjs-util/dist.browser/address.js 14:31-48
Module not found: Error: Can't resolve 'assert' in '/Users/tazar/nft-minter-tutorial/minter-starter-files/node_modules/ethereumjs-util/dist.browser'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "assert": require.resolve("assert/") }'
- install 'assert'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "assert": false }
ERROR in ./node_modules/ethereumjs-util/dist.browser/object.js 14:31-48
Module not found: Error: Can't resolve 'assert' in '/Users/tazar/nft-minter-tutorial/minter-starter-files/node_modules/ethereumjs-util/dist.browser'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "assert": require.resolve("assert/") }'
- install 'assert'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "assert": false }
ERROR in ./node_modules/web3-eth-accounts/lib/index.js 31:74-91
Module not found: Error: Can't resolve 'crypto' in '/Users/tazar/nft-minter-tutorial/minter-starter-files/node_modules/web3-eth-accounts/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "crypto": require.resolve("crypto-browserify") }'
- install 'crypto-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "crypto": false }
ERROR in ./node_modules/web3-eth-accounts/node_modules/eth-lib/lib/bytes.js 7:193-227
Module not found: Error: Can't resolve 'crypto' in '/Users/tazar/nft-minter-tutorial/minter-starter-files/node_modules/web3-eth-accounts/node_modules/eth-lib/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "crypto": require.resolve("crypto-browserify") }'
- install 'crypto-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "crypto": false }
ERROR in ./node_modules/web3-providers-http/lib/index.js 30:11-26
Module not found: Error: Can't resolve 'http' in '/Users/tazar/nft-minter-tutorial/minter-starter-files/node_modules/web3-providers-http/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "http": require.resolve("stream-http") }'
- install 'stream-http'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "http": false }
ERROR in ./node_modules/web3-providers-http/lib/index.js 32:12-28
Module not found: Error: Can't resolve 'https' in '/Users/tazar/nft-minter-tutorial/minter-starter-files/node_modules/web3-providers-http/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "https": require.resolve("https-browserify") }'
- install 'https-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "https": false }
ERROR in ./node_modules/web3-providers-ws/lib/helpers.js 11:12-26
Module not found: Error: Can't resolve 'url' in '/Users/tazar/nft-minter-tutorial/minter-starter-files/node_modules/web3-providers-ws/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "url": require.resolve("url/") }'
- install 'url'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "url": false }
ERROR in ./node_modules/xhr2-cookies/dist/xml-http-request.js 37:11-26
Module not found: Error: Can't resolve 'http' in '/Users/tazar/nft-minter-tutorial/minter-starter-files/node_modules/xhr2-cookies/dist'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "http": require.resolve("stream-http") }'
- install 'stream-http'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "http": false }
ERROR in ./node_modules/xhr2-cookies/dist/xml-http-request.js 39:12-28
Module not found: Error: Can't resolve 'https' in '/Users/tazar/nft-minter-tutorial/minter-starter-files/node_modules/xhr2-cookies/dist'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "https": require.resolve("https-browserify") }'
- install 'https-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "https": false }
ERROR in ./node_modules/xhr2-cookies/dist/xml-http-request.js 41:9-22
Module not found: Error: Can't resolve 'os' in '/Users/tazar/nft-minter-tutorial/minter-starter-files/node_modules/xhr2-cookies/dist'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "os": require.resolve("os-browserify/browser") }'
- install 'os-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "os": false }
ERROR in ./node_modules/xhr2-cookies/dist/xml-http-request.js 43:10-24
Module not found: Error: Can't resolve 'url' in '/Users/tazar/nft-minter-tutorial/minter-starter-files/node_modules/xhr2-cookies/dist'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "url": require.resolve("url/") }'
- install 'url'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "url": false }
I faced the same problem and installed two libs
https://www.npmjs.com/package/url
https://www.npmjs.com/package/xhr2-cookies/v/0.9.1
then it works.
This is React's not-so-subtle way of telling people to stop using back-end packages in their front-end applications. They have removed the default poly-fill for Nodejs packages. Read more about the current state here.

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