ERROR:
Error: Cannot find module 'redux'
at Function.Module._resolveFilename (module.js:555:15)
at Function.Module._load (module.js:482:25)
at Module.require (module.js:604:17)
at require (internal/module.js:11:18)
at Object. (C:\dev\Django
code\portfolio_web\stats_frontend\node_modules\react-
redux\lib\connect\mapDispatchToProps.js:8:14)
at Module._compile (module.js:660:30)
at Module._extensions..js (module.js:671:10)
at Object.require.extensions.(anonymous function) [as .js] (C:\dev\Django
code\portfolio_web\stats_frontend\node_modules\babel-
register\lib\node.js:152:7) at Module.load (module.js:573:32)
at tryModuleLoad (module.js:513:12)
The file where I import react-redux is reduxStore.js:
import {createStore} from 'react-redux;
//There is nothing else. The function being imported doesn't change anything`
I'm running the file with babel-node, or with webpack-cli (which is using babel to transpile ES2015. In both cases I get the same error.
Tracing the error I can open the source (
...\stats_frontend\node_modules\react-redux\lib\connect\mapDispatchToProps.js of the error (its from official react-redux dist).
Line 8 (which causes the error) I can see a commonJS import:
var _redux = require('redux');
Upon further inspection I can see that the node search algorithm will not find 'redux' because no such file exists in ./node_modules/react-redux/ or in ./node_modules/
I have installed and updated my react-redux installation with node install --save-dev react-redux with no errors.
I was hoping someone can provide insight on why the error occurs and how to fix it
You are importing createStore from wrong library. import it from redux
import { createStore } from 'redux';
Related
I am trying to import from the #microsoft/mgt library in my Node js application and facing issues - can someone help. I am already using Babel for using the ES6 modules.
Am I missing something - I am new to Node :(
export * from '#microsoft/mgt-element';
^^^^^^
SyntaxError: Unexpected token 'export'
at wrapSafe (internal/modules/cjs/loader.js:1053:16)
at Module._compile (internal/modules/cjs/loader.js:1101:27)
at Module._compile (C:\Users\dip\Python Projects\Classified_2021\Node_2021\Internet_Projects_2021\node-starter-kit-es6-master\node_modules\pirates\lib\index.js:99:24)
at Module._extensions..js (internal/modules/cjs/loader.js:1157:10)
at Object.newLoader [as .js] (\node_modules\pirates\lib\index.js:104:7)
at Module.load (internal/modules/cjs/loader.js:985:32)
at Function.Module._load (internal/modules/cjs/loader.js:878:14)
at Module.require (internal/modules/cjs/loader.js:1025:19)
at require (internal/modules/cjs/helpers.js:72:18)
at Object. (\src/index.js:2:1)
[nodemon] app crashed - waiting for file changes before starting...
You are importing from microsoft/mgt-element library so change the export to import
import * from '#microsoft/mgt-element';
besides why you are importing the whole library when you only need some parts of it?
if you only need Providers do this:
import {Providers,ProviderState} from '#microsoft/mgt-element';
Im trying to use native import which were released with node 12
but i always get this error even with importing just cors
import * as cors from 'cors';
^^^^^^
SyntaxError: Cannot use import statement outside a module
at Module._compile (internal/modules/cjs/loader.js:892:18)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:973:10)
at Module.load (internal/modules/cjs/loacjsder.js:812:32)
at Function.Module._load (internal/modules/cjs/loader.js:724:14)
at Function.Module.runMain (internal/modules/cjs/loader.js:1025:10)
at internal/main/run_main_module.js:17:11
node version v12.13.0
docs https://nodejs.org/docs/latest-v12.x/api/esm.html#esm_code_import_code_specifiers which i tried to follow.
Thanks for help
You have to use this flag --experimental-modules while running node js, also you will have to us .mjs instead of .js extension
i following an express.js tutorial andd after some code and functionalities with api requests i followed exactly how he changed the code that handles these requests into a seperate js file in another folder just to clean up the code but after i did that this error showed up
i tried changing the file name , i tried removing the node-modules folder and running npm install again and i tried installing the module with the issue
internal/modules/cjs/loader.js:638
throw err;
^
Error: Cannot find module '/routes/api/members'
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
at Function.Module._load (internal/modules/cjs/loader.js:562:25)
at Module.require (internal/modules/cjs/loader.js:690:17)
at require (internal/modules/cjs/helpers.js:25:18)
at Object.<anonymous> (C:\Users\Get_Rico\Desktop\crashcoursse\index.js:11:25)
at Module._compile (internal/modules/cjs/loader.js:776:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)
[nodemon] app crashed - waiting for file changes before starting...
i expect nodemon to save the changes and work just fine with no errors just like what happened in the tutorial
It appears the error is probably coming from this line of code and it's telling you that it can't find the '/routes/api/members' module file.
And, this would not be working because you're trying to load a local module without a proper path name. If no path is specified, then it tries to load a global or built-in module. If that module is in the current directory, then you should use the correct path:
const yourModule = './routes/api/members';
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],
})
Failed to load external module babel-core/register
Failed to load external module babel/register
somelocation\gulpfile.babel.js:27
import fs from 'fs';
^^^^^^
SyntaxError: Unexpected reserved word
at exports.runInThisContext (vm.js:53:16)
at Module._compile (module.js:413:25)
at Object.Module._extensions..js (module.js:452:10)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
at Module.require (module.js:365:17)
at require (module.js:384:17)
at Liftoff.handleArguments (\AppData\Roaming\npm\node_modules\gulp\bin\gulp.js:116:3)
at Liftoff.<anonymous> (\AppData\Roaming\npm\node_modules\gulp\node_modules\liftoff\index.js:192:16)
at module.exports (\AppData\Roaming\npm\node_modules\gulp\node_modules\liftoff\node_modules\flagged-respawn\index.js:17:3)
I am getting this error while trying to run gulp after npm as described here: deploy-appengine.md. How to fix it?
EDIT: as Luke Bennet points out correctly in a comment to this answer, it was indeed JavaScript - the ES6 "import" syntax. The issue is that this won't work out of the box in Node as yet.
You seem to be using the python module import syntax in NodeJS. You should use the NodeJS module require syntax.