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I'm getting an error when trying to use any global module, exemple:
Error: Cannot find module 'express' at Function.Module._resolveFilename (module.js:338:15) at Function.Module._load (module.js:280:25) at Module.require (module.js:362:17) at require (module.js:378:17) at Object.<anonymous> (C:\BitNami\wappstack\...\test\app.js) at Module._compile (module.js:449:26) at Object.Module._extensions..js (module.js:467:10) at Module.load (module.js:356:32) at Function.Module._load (module.js:312:12) at Module.runMain (module.js:492:10) I installed the express command:
npm install -g express My app.js:
var express = require('express'); And run it using windows powershell or node.js command prompt windows:
node app.js do not really know what's going wrong, I read something about environment variables in windows, can this be?
The problem was: Windows environment variables was not configured for npm folder. Search for your npm folder and add the path in the environment variables.
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If you are getting the "Cannot find module" error when trying to run a local file, make sure that the path you passed to the node command points to a file that exists. For example, if you run node src/index. js , make sure that the path src/index. js points to an existing file.
To fix Cannot find module errors, install the modules properly by running a npm install command in the appropriate directory as your project's app. js or index. js file. or delete the node_modules folder and package-lock.
To solve the error "Cannot find module 'express'", install the package by running the command npm install express in the root directory of your project. If you don't have a package. json file, create one by running npm init -y . The error occurs when we try to import the express package without installing it.
Just to quote from here:
https://www.npmjs.org/doc/files/npm-folders.html
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