Webpack Error - Cannot Resolve File or Directory

Question

I am getting this error when I npm start my webpack-dev-server:

ERROR in multi main
Module not found: Error: Cannot resolve \'file\' or \'directory\' /var/ww         


        

Answer 1

ok if any one face this problem, you can solve it in 2 methods:

Method 1:

1- add a file called package.json inside your entry folder (in your case put it inside the folder "{project_dir}/app/package.json")

2- inside this file write any json object for example:

{
  "name": "webpack why you do diss :("
}

Method 2:

Change your entry files to be at least 2 level away from your project home directory, for example: "{project_dir}/src/app"

Explanation: for each entry file webpack will try to find a file called package.json to use it for webpack configuration incase this entry file is a module, when you put your entry file only 1 level away from your project home dir webpack will use your project packge.json as configuration file for your entry file and it will fail because of miss configuration.

Answer 2

You should check the browser console. It provides more detailed informations.

In my case:

Uncaught Error: Cannot find module "./src/index"
at webpackMissingModule (webpack:///multi_main?:4)
at eval (webpack:///multi_main?:4)
at Object.<anonymous> (bundle.js:586)
at __webpack_require__ (bundle.js:556)
at bundle.js:579
at bundle.js:582

So here is the error a missing (or misspelled) java script file.

Answer 3

The same problem I met. I found an answer in github Error : ERROR in Entry module not found: Error: Cannot resolve 'file' or 'directory'#981. But sadly, in webpack 1.15.12, the --allow-incompatible-update has been remove. Also, I found when set the entry type is array, such as entry: [entry.js], webpack will run, but throw another error:(

I wish it can help you, hopefully.