Trying to set up react.js environment, not working

Trying to set up react.js environment, not working

I used a tutorial from&nbsp;<a href="" target="_blank"></a>

I used a tutorial from

got below message from command prompt when i entered "npm start" I did everything and i have node.js installed. PLEASE HELP!!

edit: wjwar is username

C:\Users\wjwar\Desktop\reactApp>npm start

> [email protected] start C:\Users\wjwar\Desktop\reactApp > webpack-dev-server --mode development --open --hot

'webpack-dev-server' is not recognized as an internal or external command, operable program or batch file. npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! [email protected] start: webpack-dev-server --mode development --open --hot npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the [email protected] start script. npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in: npm ERR! C:\Users\wjwar\AppData\Roaming\npm-cache_logs\2019-02-27T06_01_00_391Z-debug.log

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