Anytime I try to run my contact server from aws ec2 it tells me the module cannot be found, even right after installing it with npm. It works fine on my local machine but I can't find any documentation on why this may be happening. I'd really appreciate the help.
Error: Cannot find module '#sendGrid/mail'
Require stack:
- /home/ec2-user/personalSite/api/contactServer.js
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:893:15)
at Function.Module._load (internal/modules/cjs/loader.js:743:27)
at Module.require (internal/modules/cjs/loader.js:965:19)
at require (internal/modules/cjs/helpers.js:88:18)
at Object.<anonymous> (/home/ec2-user/personalSite/api/contactServer.js:5:18)
at Module._compile (internal/modules/cjs/loader.js:1076:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1097:10)
at Module.load (internal/modules/cjs/loader.js:941:32)
at Function.Module._load (internal/modules/cjs/loader.js:782:14)
at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12) {
code: 'MODULE_NOT_FOUND',
requireStack: [ '/home/ec2-user/personalSite/api/contactServer.js' ]
}
Turns out modules cannot have capital letters, but as I am developing on a mac it handles the case with capital letters, whereas on aws running linux, it is still case sensitive. Simply changing my import to import "#sendgrid/mail" did the trick.
Related
You are using a version of Node.js that is not supported by Hardhat,
and it may work incorrectly, or not work at all. Please, make sure you
are using a supported version of Node.js. To learn more about which
versions of Node.js are supported go to
https://hardhat.org/nodejs-versions
An unexpected error occurred:
Error: Cannot find module '#nomiclabs/hardhat-waffle'
Require stack:
- D:\3.1\dppa\hardhat.config.js
- D:\3.1\dppa\node_modules\hardhat\internal\core\config\config-loading.js
- D:\3.1\dppa\node_modules\hardhat\internal\cli\cli.js
at Function.Module._resolveFilename (node:internal/modules/cjs/loader:939:15)
at Function.Module._load (node:internal/modules/cjs/loader:780:27)
at Module.require (node:internal/modules/cjs/loader:1005:19)
at require (node:internal/modules/cjs/helpers:102:18)
at Object.<anonymous> (D:\3.1\dppa\hardhat.config.js:1:1)
at Module._compile (node:internal/modules/cjs/loader:1105:14)
at Object.Module._extensions..js (node:internal/modules/cjs/loader:1159:10)
at Module.load (node:internal/modules/cjs/loader:981:32)
at Function.Module._load (node:internal/modules/cjs/loader:827:12)
at Module.require (node:internal/modules/cjs/loader:1005:19) {
code: 'MODULE_NOT_FOUND',
requireStack: [
'D:\\3.1\\dppa\\hardhat.config.js',
'D:\\3.1\\dppa\\node_modules\\hardhat\\internal\\core\\config\\config-loading.js',
'D:\\3.1\\dppa\\node_modules\\hardhat\\internal\\cli\\cli.js'
]
}
PS D:\3.1\dppa>
It looks like you are trying to run the sample project and are missing plugins.
As stated here, you need to install some plugins for the sample project with the following command.
npm install --save-dev #nomiclabs/hardhat-waffle ethereum-waffle chai #nomiclabs/hardhat-ethers ethers
Besides that, as stated in the provided link, you should use the latest LTS of Node.js, which is Node.js 16 and can be downloaded here
I have setup mocha to test typescript source files. I have successfully run a test on one file that only imported source files, but I'm seeing a failure running a test that imports a node module.
I am running this on the command line to run the tests:
mocha -r ts-node/register -r jsdom-global/register spec/**/**.spec.ts
In the test that is failing, the source file that it is testing has this import
import * as angular from "angular";
And when the test is run, I see this error:
ReferenceError: angular is not defined
at Object.<anonymous> (/Users/bsacamano/testRepos/myApp/node_modules/angular/index.js:2:18)
at Module._compile (node:internal/modules/cjs/loader:1103:14)
at Object.Module._extensions..js (node:internal/modules/cjs/loader:1157:10)
at Module.load (node:internal/modules/cjs/loader:981:32)
at Function.Module._load (node:internal/modules/cjs/loader:822:12)
at Module.require (node:internal/modules/cjs/loader:1005:19)
at require (node:internal/modules/cjs/helpers:102:18)
at Object.<anonymous> (/Users/bsacamano/testRepos/myApp/web/common/default/unsecured/shared-modules/services/flexlabel/flex.service.ts:1:1)
at Module._compile (node:internal/modules/cjs/loader:1103:14)
at Module.m._compile (/Users/bsacamano/testRepos/myApp/node_modules/ts-node/src/index.ts:1455:23)
at Module._extensions..js (node:internal/modules/cjs/loader:1157:10)
at Object.require.extensions.<computed> [as .ts] (/Users/bsacamano/testRepos/myApp/node_modules/ts-node/src/index.ts:1458:12)
at Module.load (node:internal/modules/cjs/loader:981:32)
at Function.Module._load (node:internal/modules/cjs/loader:822:12)
at Module.require (node:internal/modules/cjs/loader:1005:19)
at require (node:internal/modules/cjs/helpers:102:18)
at Object.<anonymous> (/Users/bsacamano/testRepos/myApp/spec/shared-modules/services/flexlabel/flex.service.spec.ts:1:1)
at Module._compile (node:internal/modules/cjs/loader:1103:14)
at Module.m._compile (/Users/bsacamano/testRepos/myApp/node_modules/ts-node/src/index.ts:1455:23)
at Module._extensions..js (node:internal/modules/cjs/loader:1157:10)
at Object.require.extensions.<computed> [as .ts] (/Users/bsacamano/testRepos/myApp/node_modules/ts-node/src/index.ts:1458:12)
at Module.load (node:internal/modules/cjs/loader:981:32)
at Function.Module._load (node:internal/modules/cjs/loader:822:12)
at Module.require (node:internal/modules/cjs/loader:1005:19)
at require (node:internal/modules/cjs/helpers:102:18)
at Object.exports.requireOrImport (/Users/bsacamano/testRepos/myApp/node_modules/mocha/lib/nodejs/esm-utils.js:49:16)
at async Object.exports.loadFilesAsync (/Users/bsacamano/testRepos/myApp/node_modules/mocha/lib/nodejs/esm-utils.js:91:20)
at async singleRun (/Users/bsacamano/testRepos/myApp/node_modules/mocha/lib/cli/run-helpers.js:125:3)
at async Object.exports.handler (/Users/bsacamano/testRepos/myApp/node_modules/mocha/lib/cli/run.js:370:5)
I have a different test for a source file that has these imports
import {IHttpService, IPromise, IRequestConfig} from 'angular';
and that test completes without error.
Also, the code works in production; I'm seeing that angular is defined and working.
Any ideas on what I can do to get the test to pass?
Update:
I think it has to do with the clown show that is bare imports. My web app is built with webpack, and webpack takes care of converting those imports when bundling.
Out of desperation, I tried building a bundle for my tests (which I really didn't want to do since I'm not distributing the file, but you know). I then ran mocha on the bundle, but I'm still getting the same error, angular is not defined, just with a different stack trace.
Update 2:
Even if I were to remove the "bare" import and replace with an import of the script relative to the file, it doesn't work. I don't get the ReferenceError, but the import just doesn't happen; if I console.log(angular); after importing it, I see that it is an empty object.
When starting my discord bot that I created a couple years ago I'm getting this error, I've no clue on whats causing it. I have done the uninstall of the node_modules and reinstalling etc but I'm not sure what the error could be caused by, any ideas?
Error:
PS C:\Users\Admin\Documents\Bot> node index.js
internal/modules/cjs/loader.js:960
throw err;
^
Error: Cannot find module 'better-sqlite3'
Require stack:
- C:\Users\Admin\Documents\Bot\node_modules\enmap\src\index.js
- C:\Users\Admin\Documents\Bot\node_modules\enmap\index.js
- C:\Users\Admin\Documents\Bot\index.js
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:957:15)
at Function.Module._load (internal/modules/cjs/loader.js:840:27)
at Module.require (internal/modules/cjs/loader.js:1019:19)
at require (internal/modules/cjs/helpers.js:77:18)
at new Enmap (C:\Users\Admin\Documents\Bot\node_modules\enmap\src\index.js:110:24)
at Object.<anonymous> (C:\Users\Admin\Documents\Bot\index.js:5:14)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1153:10)
at Module.load (internal/modules/cjs/loader.js:977:32)
at Function.Module._load (internal/modules/cjs/loader.js:877:14) {
code: 'MODULE_NOT_FOUND',
requireStack: [
'C:\\Users\\Admin\\Documents\\Bot\\node_modules\\enmap\\src\\index.js',
'C:\\Users\\Admin\\Documents\\Bot\\node_modules\\enmap\\index.js',
'C:\\Users\\Admin\\Documents\\Bot\\index.js'
]
}
First make sure better-sqlite3 is installed
npm i better-sqlite3
then that it has been defined
const better-sqlite3 = require('better-sqlite3')
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],
})
I have my first node server app running fine on localhost, but in a digitalocean (ubuntu) environment I can't get the paths to work.
This line
require("./lib/dbHelper").initilize();
Generate this error
Error: Cannot find module './lib/dbHelper'
at Function.Module._resolveFilename (module.js:339:15)
at Function.Module._load (module.js:290:25)
at Module.require (module.js:367:17)
at require (internal/module.js:16:19)
at Object.<anonymous> (/var/www/wsApp/app.js:18:1)
at Module._compile (module.js:413:34)
at Object.Module._extensions..js (module.js:422:10)
at Module.load (module.js:357:32)
at Function.Module._load (module.js:314:12)
at Function.Module.runMain (module.js:447:10)
And this line
let User = require("../models/User");
generates this error
Error: Cannot find module '../models/User'
at Function.Module._resolveFilename (module.js:339:15)
at Function.Module._load (module.js:290:25)
at Module.require (module.js:367:17)
at require (internal/module.js:16:19)
at Object.<anonymous> (/var/www/wsApp/routes/auth.js:5:12)
at Module._compile (module.js:413:34)
at Object.Module._extensions..js (module.js:422:10)
at Module.load (module.js:357:32)
at Function.Module._load (module.js:314:12)
at Module.require (module.js:367:17)
I have looked here (https://gist.github.com/branneman/8048520) for solutions and I have tried suggestions 3, 4.2 and 6 but nothing changes the error messages.
Worth noting is that this line seems to work fine
app.use("/", require("./routes/auth.js"));
Being new to node I don't quite understand the path mappings, and it seems strange that this last one would work while the first one doesn't since they both use the dot syntax...
If you are developing on a case-insensitive filesystem (OS X or Windows), you may be getting tripped up by the fact that the linux filesystem is case sensitive. Check, for example, that the "H" in "dbHelper" is really uppercase in your git repository.