internal modules cjs loader js 582 throw err

Question

I m getting following Console Error  Error   Cannot find module  Here is the full error i m getting in console  What should I do   internal modules cjs loader js 582     throw err         Error  Cannot find module  C  Users User Desktop NodeJsProject app js      at Function Module  resolveFilename  internal modules cjs loader js 580 15      at Function Module  load  internal modules cjs loader js 506 25      at Function Module runMain  internal modules cjs loader js 741 12      at startup  internal bootstrap node js 285 19      at bootstrapNodeJSCore  internal bootstrap node js 739 3

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Replace your file name in package json    npm    lt your server code file name gt  js   with that file where your server code  is running  it should be app js  main js  start js  server js  or whatever you picked up

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I changed name of my Project s folder and It s worked   i don t know why

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Caseyjustus comment helped me  Apparently I had space in my require path  const listingController   require  quot    controllers  listingController quot     I changed my code to const listingController   require  quot    controllers listingController quot     and everything was fine

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same happen to me i just resolved by deleting  dist  file and re run the app

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Create the  js file inside the main directory not inside the sub folders such as public or src

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It s possible you are not running the terminal command from the right directory  If you have created a new folder for example  consider navigating into the folder  then run the command from there

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Make sure you give the right address path for app js when running node  lt path gt  app js  It can t find it   Error  Cannot find module  C  Users User Desktop NodeJsProject app js

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you need start server use follow command  npm start   or  yarn start

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I was having the same error because I had a space at the end of my filename not the reference but the actual filename    Once I changed  app js   to  app js  it worked fine

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try following command  remove node modules and package-lock json  rm -rf node modules package-lock json   then run following command to install dependencies  npm install   finally  run your package by following command   npm start

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Simply type  quot node NodeJsProject app js quot  Your program will run

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I got the same error    nodemon -w server js server js   nodemon  2 0 2  nodemon  reading config   nodemon json  nodemon  to restart at any time  enter  rs   nodemon  or send SIGHUP to 19248 to restart  nodemon  ignoring    node modules         next       nodemon  watching dir s   server js  nodemon  watching extensions  js json  nodemon  starting  node server js index js   nodemon  forking  nodemon  child pid  18840  nodemon  watching 30 files internal modules cjs loader js 797     throw err         Error  Cannot find module  D  Programming 01a nextjs project index js      at Function Module  resolveFilename  internal modules cjs loader js 794 15      at Function Module  load  internal modules cjs loader js 687 27      at Function Module runMain  internal modules cjs loader js 1025 10      at internal main run main module js 17 11     code   MODULE NOT FOUND     requireStack        nodemon  app crashed - waiting for file changes before starting      I followed all the advises from here  but none of them worked for me   What I found is that I moved the server js in his own folder server server js  but in package json I forgot to make the change from this     dev    nodemon -w server js server js     build    next build     start    NODE ENV production node server js    to this    dev    nodemon -w server server js server server js    build    next build    start    NODE ENV production node server server js    After I made this change and restart the server with npm run dev everything worked fine

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Something weird happened to me last night   I ran command node run watch instead of npm run watch   I tried doing everything on this thread but nothing worked out for me  I was frustrated but eventually noticed that I ran the command wrong  I was laughing out loud  Sometimes this things happened  Enjoying learning Nodejs though

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I had the same issue when I first tried on node js  I noticed this issue was happening to me because I had some  js files with same names in different directories  which were in the same main directory  I created another directory outside the main project folder  and created a  js file  After that  it ran fine  ex- app js

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This error message is easy to reproduce   Open a terminal window   On Windows  WinKey  cmd  Enter  On Linux  Ctrl   Alt   t   Type npm and hit Enter to see if Node js is installed  If you get command not found  download at https   nodejs org en download  and install   On Linux Ubuntu  sudo apt install nodejs if you prefer   Type  or paste  node thisFileDoesNotExist js  and hit Enter    On Windows expect to see something similar to  internal modules cjs loader js 969   throw err       Error  Cannot find module        a few more lines   On Linux  Ubuntu 18 04   module js 549   throw err       Error  Cannot find module        I have not tried macOS  but would expect something similar there as well  Note  This might happen for no apparent reason when debugging in Visual Studio Code  If you get the error inside VScode  see if the answer by HappyHands31 is of any help   Finally  to run Node js in the terminal without an error  in the Windows terminal  command line  try  echo console log   nHello world    gt  hello js node hello js  In the Linux terminal try  echo  quot console log   nHello world   n   quot  gt  hello js node hello js  Of course  expect to see the terminal responding  Hello world

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The path to the js file you re trying to execute is wrong  you have to type the path and the file name you want to execute relative to root where node is  but what you typed isn t where it is  I typed node redux-basics js  got this slightly-misleading error message  Stack Overflow ed  looked at my file system  and I should have typed node src redux-basics js

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What helped me was to place the  js file that I was working with in a new folder  drag and drop that folder into VS Code  to open the directory directly in VS Code   open the terminal in VS Code  and then simply type node  lt filename gt  js  or in my case node index js    I had already installed node on my system  but for whatever reason  I was still getting the error that you ve mentioned  even when I typed the direct path to the file i e  node  desktop index js     So  creating a new folder on my desktop  placing the  js file inside that folder  opening that folder within VS Code  and then typing node index js in the terminal solved my issue

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For me  npm install  again from command prompt worked  Command Prompt must be  Run as Administrator

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it finally worked for me after I did   sudo npm i cjs-loader  and make sure to install express  not just express-http-proxy

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Ran into a similar issue with nodemon running through docker  it d be worth checking that your  quot main quot  file in your package json is configured to point at the correct entry point in package json  quot main quot    quot server js quot    quot scripts quot          quot start quot   quot nodemon src server js quot        quot docker build quot    quot docker build -f   docker Dockerfile    quot

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I was facing same problem   I downgraded webpack-dev-server to 2 5 1 version  Now everything is working fine

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Hashan Gunathilaka was correct  this strange behavior exists  I just deleted the duplicates and closed the command prompt to open again in windows  Worked fine

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The particular  js file was in the sub folder   src  of the application and Terminal was in general App folder  which contains all package files modules public folder src folder  it was throwing that error Going to   src  of application resolved my issue

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The below commands resolved the issue for me   npm install node-gyp -g npm install bcrypt -g  npm install bcrypt -save

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For those who are using TypeScript  it s caused by incremental option in the compilerOptions of your settings  This causes to build tsconfig tsbuildinfo file which stores all the data for cache  If you remove that file and recompile the project it should work straight away

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Delete the node modules directory  Delete the package-lock json file  Run npm install  Run npm start   OR   rm -rf node modules package-lock json  amp  amp  npm install  amp  amp  npm start

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When I was using the below command  I too was getting the same error   node  function-hello js   I changed my command to below command  it worked fine   node   function-hello js

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I uninstalled puppeteer  mocha and chai using   npm uninstall puppeteer mocha chai   from the command line and then reinstalled using   npm install puppeteer mocha chai   and the error message simply never showed up

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For me  the Node package I was trying to use would only work on an older version of Node   I was able to fix it by using Homebrew to install an older version of Node   brew unlink node brew install node 12 echo  export PATH   usr local opt node 12 bin  PATH    gt  gt     zshrc   In the above commands  you will need to edit the Node version and then export PATH command

[javascript] internal/modules/cjs/loader.js:582 throw err

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