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   console log  hello world      When I tried to run the file from the command prompt   C  Users Laura gt cd desktop C  Users Laura Desktop gt node nodeTest js   I get   module js 340 throw err          Error  Cannot find module  C  Users Laura Desktop testNode js  at Function Module  resolveFilename  module js 338 15  at Function Module  load  module js 280 25  at Function Module runMain  module js 497 10  at startup  node js 119 16  at node js 901 3   I read many other related questions  and some of them recommend to run the install  and so I did   C  Users Laura gt npm install -g express   But no luck  still getting the same error message

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I think the issue is the NODE PATH environment variable  I had the same problem but once I issued  on Windows   set NODE PATH C  Users MyUser node modules   then all worked ok   Cheers

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I executed following command and it works for me   PM gt  npm install ee-first ee-first 1 1 0 node modules ee-first

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Try npm start in Node js Command Prompt  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 Open this file in Notepad and find the real address of Node exe   something like C   Program Files  nodejs    node exe Try cd to this path Call node exe    lt full path to your server file js gt   Server is listening on port 1337

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I had a nearly identical issue  turned out my JS file wasn t actually in the folder I was calling it from  and I had gone one folder too deep  I went up one directory  ran the file  it recognized it  happily ever after   Alternatively  if you go one folder up  and it gives you the same error  but about a different module  take that same file in your parent folder and move it into the subfolder you were previously trying to run things from   TL DR- your file or its module s  is not in the folder you think it is   Go up one level

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Restart your command prompt and check your path variable  type  path   If you can t find find nodejs installation dir from output add it to the path variable and remember to restart cdm again

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Easy way for this problem  npm link e

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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

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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

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I had the same problem then I found that I wasn  t hitting the node server command in the proper directory where the server js is located   Hope this helps

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I had the same problem  but finally I tried copying the Node modules folder in the same project folder  and it worked

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Try npm install --production and then npm start

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Faced the same problem while trying to run node-red   node  lt directory structure where js  is located gt  red  js   In my case it was    node AppData Roaming npm node modules node-red red js

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Make sure you saved the file as JavaScript  Un check  Hide extensions for all known type  check box in Folder Options window will show you the correct file extension Folder  view  Option

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Hi fellow Phonegap Cordova Ionic developers     I solved this issue by doing the following    1  C  drive - gt  Users - gt   username  eg  john - gt  AppData - gt  Roaming    2  Inside the  Roaming  folder you need to delete both  npm  and  npm-cache          folder     3  Now build your project  and it should work   Happy coding

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If you are using a framework like express  you need to put the package json file into the folder you are using and don t forget change main name

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I was having the same problem with a server someone had written a while back  It turns out I didn t have a few things installed that the script required    This question was helpful to me   I ended up being able to use   npm install yourMissingDependency    Although in your instance it may just be a file that it doesn t have a path to  You could try putting that file in the same folder you are running the node script from

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Try typing this into the Node command-line environment    load c  users laura desktop nodeTest js   It should work for what you re trying to do   If you want to call the file directly  you d have to have it in the root directory where your Node installation resides

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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 gt 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

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While i tried to run my first node application i had encountered the same issue but when i tried to see what the issue might be it was the path of the file  I was running the node  js from different location and hence encountered the issue  When i fixed the path this worked fine

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In my case  i got this error because i was just in the wrong directory  So node couldnt find the module that i wanted to run  Just be sure your node file is in your Desktop directory

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I also got this issue and this was due to wrong path that we mention while running  Check your file path and also make sure that there is no space between the name of your directory name

[node.js] nodejs module.js:340 error: cannot find module

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