I have been looking around for the best framework with nodejs. I am starting to lean twords Zappa. I was testing it out and everything was working fine until I started a new project and reinstalled it with npm.
Now any time I do anything with it, it throws this error.
This
require('zappa') ->
console.log "Hello World!"
Becomes
TypeError: Cannot read property 'prototype' of undefined
at Object.<anonymous> (/home/giodamelio/Projects/node-boilerplate/node_modules/zappa/lib/zappa.js:65:15)
at Object.<anonymous> (/home/giodamelio/Projects/node-boilerplate/node_modules/zappa/lib/zappa.js:702:4)
at Module._compile (module.js:446:26)
at Object..js (module.js:464:10)
at Module.load (module.js:353:31)
at Function._load (module.js:311:12)
at Module.require (module.js:359:17)
at require (module.js:375:17)
at Object.<anonymous> (/home/giodamelio/Projects/node-boilerplate/src/app.coffee:3:3)
at Object.<anonymous> (/home/giodamelio/Projects/node-boilerplate/src/app.coffee:52:4)
What happened?
Recently I just had a similar problem with zappa 0.3.3
Apparently the creator of zappa is on vacation and doesn't update to the current versions of node.js, but you may use zappajs instead. It's a fork that is a little more up-to-date.
npm install zappajs
And use require('zappajs') instead of require('zappa').
Related
I've developed an electron app with following tech stack:
NodeJS (10.15) with Babel to allow ES6 import/export syntax.
Sequelize on SQLite and GraphQL to handle an internal database.
ReactJS (bundled) for views.
I've configured everything to work with Electron and running "electron" command in project root folder works without errors.
Now i'm trying to distribute it using this tutorial: https://electronjs.org/docs/tutorial/application-distribution
So i've simply downloaded the 4.1.4 binaries for windows and moved the project folder under resources/app/
But running the electron.exe i've the following error:
App threw an error during load
TypeError: Cannot create property 'default' on symbol 'Symbol(nodejs.util.inspect.custom)'
at Object.<anonymous> (C:\workspace\myapp\resources\app\node_modules\graphql\jsutils\nodejsCustomInspectSymbol.js:18:84)
at Object.<anonymous> (C:\workspace\myapp\resources\app\node_modules\graphql\jsutils\nodejsCustomInspectSymbol.js:20:3)
at Module._compile (internal/modules/cjs/loader.js:711:30)
at Module._compile (C:\workspace\myapp\resources\app\node_modules\pirates\lib\index.js:83:24)
at Module._extensions..js (internal/modules/cjs/loader.js:722:10)
at Object.newLoader [as .js] (C:\workspace\myapp\resources\app\node_modules\pirates\lib\index.js:88:7)
at Module.load (internal/modules/cjs/loader.js:620:32)
at tryModuleLoad (internal/modules/cjs/loader.js:559:12)
at Function.Module._load (internal/modules/cjs/loader.js:551:3)
at Module.require (internal/modules/cjs/loader.js:658:17)
at require (internal/modules/cjs/helpers.js:20:18)
at Object.<anonymous> (C:\workspace\myapp\resources\app\node_modules\graphql\jsutils\defineToJSON.js:8:57)
at Object.<anonymous> (C:\workspace\myapp\resources\app\node_modules\graphql\jsutils\defineToJSON.js:36:3)
at Module._compile (internal/modules/cjs/loader.js:711:30)
at Module._compile (C:\workspace\myapp\resources\app\node_modules\pirates\lib\index.js:83:24)
at Module._extensions..js (internal/modules/cjs/loader.js:722:10)
at Object.newLoader [as .js] (C:\workspace\myapp\resources\app\node_modules\pirates\lib\index.js:88:7)
at Module.load (internal/modules/cjs/loader.js:620:32)
at tryModuleLoad (internal/modules/cjs/loader.js:559:12)
at Function.Module._load (internal/modules/cjs/loader.js:551:3)
at Module.require (internal/modules/cjs/loader.js:658:17)
at require (internal/modules/cjs/helpers.js:20:18)
i've also tried to run npx electron resources/app/ from binaries folder and i've got the same error.
So i think the issue is something about the paths.
i've also tried electron-packager and the error is the same because this tool does the same process of guide above.
What can i do to fix it?
UPDATE1: after some investigations i've found that babel causes the issues. I guess when you run a project from a parent folder. I'm trying to find a solution
i've solved using this kind of configuration for babel/register:
const rootPath=path.resolve(path.join(__dirname, "../../"));
require("#babel/register")({
root: rootPath,
extends: path.join(rootPath, '.babelrc'),
ignore: [/node_modules/],
only: [rootPath],
})
Very new to Db and JS and trying to learn ExpressJS, RethinkDb using a tutorial from this link.
https://github.com/rethinkdb/rethinkdb-example-nodejs-chat
I followed the instructions and hitting an error in basic module loading I suppose. Looks like some dependency problem or I'm probably missing some step.
As specified in the instruction, I have successfully setup rethinkDb and can see the DB explorer in
http://localhost:8080
But when node app is executed as specified in instructions, I"m hitting an error below. Any help in this regard please?
/Users/test/rethinkdb-example-nodejs-chat/node_modules/socket.io/lib/store.js:35
Store.prototype.__proto__ = EventEmitter.prototype;
^
TypeError: Cannot read property 'prototype' of undefined
at Object.<anonymous> (/Users/test/rethinkdb-example-nodejs-chat/node_modules/socket.io/lib/store.js:35:42)
at Module._compile (module.js:643:30)
at Object.Module._extensions..js (module.js:654:10)
at Module.load (module.js:556:32)
at tryModuleLoad (module.js:499:12)
at Function.Module._load (module.js:491:3)
at Module.require (module.js:587:17)
at require (internal/module.js:11:18)
at Object.<anonymous> (/Users/test/rethinkdb-example-nodejs-chat/node_modules/socket.io/lib/manager.js:16:13)
at Module._compile (module.js:643:30)
process.EventEmitter was deprecated and not working in new node version. This has been answered here
Can you rollback to older node.js version and see if you could run the tutorial
https://github.com/LearnBoost/websocket.io/issues/55
I am trying to build my nodejs application. but i am always getting this error.
util.js:988
throw new TypeError('The super constructor to "inherits" must not ' +
^
TypeError: The super constructor to "inherits" must not be null or undefined
at Object.inherits (util.js:988:11)
at Object.<anonymous> (D:\CIDE-Backend\CIDE-BACKEND\node_modules\zetta\node_modules\spdy\lib\spdy\connection.js:86:6)
at Module._compile (module.js:573:30)
at Object.Module._extensions..js (module.js:584:10)
at Module.load (module.js:507:32)
at tryModuleLoad (module.js:470:12)
at Function.Module._load (module.js:462:3)
at Module.require (module.js:517:17)
at require (internal/module.js:11:18)
at Object.<anonymous> (D:\CIDE-Backend\CIDE-BACKEND\node_modules\zetta\node_modules\spdy\lib\spdy.js:20:19)
at Module._compile (module.js:573:30)
at Object.Module._extensions..js (module.js:584:10)
at Module.load (module.js:507:32)
at tryModuleLoad (module.js:470:12)
at Function.Module._load (module.js:462:3)
at Module.require (module.js:517:17)
[nodemon] app crashed - waiting for file changes before starting...
i followed this solution but still i am getting same error.
my node version is 8.4.0
my npm version is 5.5.1
Can you tell me how can i solve this error.?
Your dependency zetta is including an ancient version of spdy which is not compatible with you current version of Node. There is currently an open issue on zetta's github about this, which has a work around:
process.EventEmitter = require('events').EventEmitter
const zetta = require('zetta')
Your mileage may vary on that hack, I have not tested it myself. Alternatively, you could wait for the zetta team to fix their dependency or downgrade your node installation.
I upgraded from node v0.6.12 to 0.80 and started receiving the error below - I have removed the sys module from the import but am still getting the error. Any helpful hints would be helpful. I am not suing stylus either.
path.exists is now called `fs.exists`.
sys.js:1
throw new Error(
Error: The "sys" module is now called "util".
at sys.js:1:69
at NativeModule.compile (node.js:602:5)
at Function.NativeModule.require (node.js:570:18)
at Function.Module._load (module.js:297:25)
at Module.require (module.js:362:17)
at require (module.js:378:17)
at Object.<anonymous> (/node/node_modules/stylus/lib/token.js:12:15)
at Module._compile (module.js:449:26)
at Object.Module._extensions..js (module.js:467:10)
at Module.load (module.js:356:32)
Upgrade to node v0.8.1. It will solve your problem
I just started using node.js for my project and tried making a connection to MySQL and inserting basic values. But I keep getting the following error:
node.js:201
throw e; // process.nextTick error, or 'error' event on first tick
^
Error: Unable to load shared library /Users/****/nodeJS/node_modules/db-mysql/build/Release/mysql_bindings.node
at Object..node (module.js:472:11)
at Module.load (module.js:348:31)
at Function._load (module.js:308:12)
at Module.require (module.js:354:17)
at require (module.js:370:17)
at Object.<anonymous> (/Users/****/nodeJS/node_modules/db-mysql/db-mysql.js:18:15)
at Module._compile (module.js:441:26)
at Object..js (module.js:459:10)
at Module.load (module.js:348:31)
at Function._load (module.js:308:12)
I did as was instructed, I specified the MYSQL_CONFIG environment variable:
$ export MYSQL_CONFIG=/usr/local/mysql/bin/mysql_config
maybe it's too late and I hope you solved this problem on your own, but it might be useful for other people experiencing the same issue.
What I did to solve it is to set the following variable:
export DYLD_LIBRARY_PATH=<your absolute path to mysql lib folder>
in my case it is:
export DYLD_LIBRARY_PATH=/usr/local/mysql-5.5.25-osx10.6-x86_64/lib/
Tested on MacOS Lion 10.7.4