Laravel error 'A facade root has not been set

问题

When I upload my laravel project to the live server, I'm getting the following error

Fatal error: Uncaught RuntimeException: A facade root has not been set. in /home/reserv10/public_html/project folder/vendor/laravel/framework/src/Illuminate/Support/Facades/Facade.php:220

I have cleared my cache also but still it's not working on live server but the same project is working perfectly on localhost.

Laravel Version: 5.6

Thanks in advance.

来源：https://stackoverflow.com/questions/53446420/laravel-error-a-facade-root-has-not-been-set