If you are working in WordPress and see the error message:
Warning: file_get_contents(/file-path/build/mix-manifest.json): failed to open stream: No such file or directory
You can fix this error message with the steps below:
From the root of your project open up the command line and type:
npm install
npm run dev
This will create the build file and the mix-manifest file, and your error should go away.
If you are working in Laravel and see the error message:
The mix manifest does not exist. View:/var/www/html/site-name/resources/views/layouts/app.blad.php
You can fix this with the exact same steps that are listed above 🙂