Laravel 5.4 ‘cross-env’ Is Not Recognized as an Internal or External Command

Question

I\'m trying to run npm run dev for Laravel Mix and I get this error:

> @ dev D:\\projects\\ptcs
> cross-env NODE_ENV=development webpack -         


        

Answer 1

Your error states that cross-env is not installed.

'cross-env' is not recognized as an internal or external command, operable program or batch file.

You just need to run

npm install cross-env