nodejs module.js:340 error: cannot find module

Question

I installed nodejs in C:\\Program Files (x86)\\nodejs

then I created a .js file and saved it in my desktop just to output \'hello world\' in the console:

Answer 1

1. Try npm start in Node.js Command Prompt.
2. Look at the end of the messages - it gives you the path of log file in "Additional Logging Details ..." something like c:\users\MyUser\npm-debug.log
3. Open this file in Notepad and find the real address of Node.exe : something like C:\\Program Files\\nodejs\\\\node.exe
4. Try cd to this path

5. Call node.exe + <full path to your server file.js>

   Server is listening on port 1337 !
   

Answer 2

I faced the same problem. I just copied the testNode.js file(that contain the test code) and pasted into the root of nodejs directory manually. I tried this command C:\Program Files (x86)\nodejs>node testnode.js Bingo! I received this message.

Then I typed this url in a browser and received the message "Hello World". Hope this help somebody.

Answer 3

Faced the same problem while trying to run node-red.

node <directory structure where js  is located>/red. js

In my case it was :

node AppData/Roaming/npm/node_modules/node-red/red.js

Answer 4

You need to:

• Remove the tick of Hide extensions for known file types from Windows Explorer folders option
• Your file will appear as testNode.js.txt
• Remove the trailing .txt so as the file to be resolved as JS file

That's it, now it works!

Answer 5

I had the same problem, but finally I tried copying the Node_modules folder in the same project folder, and it worked.

Answer 6

EDIT: This answer is outdated. With things like Yarn and NPM 5's lockfiles it is now easier to ensure you're dependencies are correct on platforms like Heroku

I had a similar issue related to node_modules being modified somehow locally but the change was not reflect on Heroku, causing my app to crash. It's relatively easy fix if this is your issue:

# Remove node_modules
rm -fr node_modules

# Reinstall packages
npm i

# Commit changes
git add node_modules
git commit -m 'Fix node_modules dependencies.'
git push heroku master

Hope that helps for others with a similar issue.