Cannot resolve module 'react-dom'

Question

I've seen few posts related to this type of error. But couldn't resolve in mine.

My package.json:

"react": "~0.14.7", "webpack": "^1.12.13", "react-hot-loader": "^3.0.0-beta.6", . . 

I'm getting following error on webpack:

ERROR in ./public/src/main.js Module not found: Error: Cannot resolve module 'react-dom' in C:\Users\react-example\public\src  @ ./public/src/main.js 19:16-36 

But in the cmd line when I did

npm -v react-dom 

I get 3.10.10. react-dom is there. But I wonder why it still gives this error.

When I installed react-dom through npm "npm install react-dom", and run webpack I get following errors:

ERROR in ./~/react-dom/lib/ReactDOMNullInputValuePropHook.js Module not found: Error: Cannot resolve 'file' or 'directory' C:\Users\react-example/node_modules/react/lib/ReactComponentTreeHook in C:\Users\react-example\node_modules\react-dom\lib  @ ./~/react-dom/lib/ReactDOMNullInputValuePropHook.js 13:29-72  ERROR in ./~/react-dom/lib/ReactDOMUnknownPropertyHook.js Module not found: Error: Cannot resolve 'file' or 'directory' C:\Users\react-example/node_modules/react/lib/ReactComponentTreeHook in C:\Users\react-example\node_modules\react-dom\lib  @ ./~/react-dom/lib/ReactDOMUnknownPropertyHook.js 15:29-72  ERROR in ./~/react-dom/lib/ReactDOMInvalidARIAHook.js Module not found: Error: Cannot resolve 'file' or 'directory' C:\Users\react-example/node_modules/react/lib/ReactComponentTreeHook in C:\Users\react-example\node_modules\react-dom\lib  @ ./~/react-dom/lib/ReactDOMInvalidARIAHook.js 14:29-72  ERROR in ./~/react-dom/lib/ReactDebugTool.js Module not found: Error: Cannot resolve 'file' or 'directory' C:\Users\react-example/node_modules/react/lib/ReactComponentTreeHook in C:\Users\react-example\node_modules\react-dom\lib  @ ./~/react-dom/lib/ReactDebugTool.js 16:29-72 

Please help.

Answer 1

Issue is react-dom is not installed, when you hit npm -v react-dom, it gives you the version of npm not react-dom version, you can check that by using npm -v or npm -v react-dom both will give you the same result. You are checking the package version incorrectly.

How to install react and react-dom properly?

Use this to install react and react-dom:

npm install react react-dom --save 

After that, you can check your package.json file, if react and react-dom has been installed correctly, you will find an entry for that.

How to check install package version?

To check all the locally installed packages version:

npm list     

For globally installed packages, use -g also:

npm list -g 

To check the version of any specific package, specify the package name also:

npm list PackageName  For Example =>    npm list react    npm list react-router 

After installation your package.json will look like this:

{   "name": "***",   "version": "1.0.0",   "main": "***",   "scripts": {      ....   },   "repository": {      ....   },   "keywords": [],   "author": "",   "dependencies": {     ....     "react": "^15.4.2",          //react     "react-dom": "^15.4.2",      //react-dom      ....   },   "devDependencies": {      ....   } } 

Latest version of react-dom is : 15.4.2

Reference: https://www.npmjs.com/package/react-dom