Class 'App\Providers\URL' not found when upload to read server

Question

I just upgrade from Laravel4.2 to Laravel5.3 and it work as well in Localhost but when upload to server I got this below errors.

Whoops, looks like something went wrong.

1/1
FatalThrowableError in AppServiceProvider.php line 18:
Class 'App\Providers\URL' not found

in AppServiceProvider.php line 18
at AppServiceProvider->boot()
at call_user_func_array(array(object(AppServiceProvider), 'boot'), array()) in Container.php line 508
at Container->call(array(object(AppServiceProvider), 'boot')) in /var/www/backoffice/vendor/laravel/framework/src/Illuminate/Foundation/Application.php line 769
at Application->bootProvider(object(AppServiceProvider)) in /var/www/backoffice/vendor/laravel/framework/src/Illuminate/Foundation/Application.php line 752
at Application->Illuminate\Foundation\{closure}(object(AppServiceProvider), '15')
at array_walk(array(object(EventServiceProvider), object(RoutingServiceProvider), object(AuthServiceProvider), object(CookieServiceProvider), object(DatabaseServiceProvider), object(EncryptionServiceProvider), object(FilesystemServiceProvider), object(FoundationServiceProvider), object(NotificationServiceProvider), object(PaginationServiceProvider), object(SessionServiceProvider), object(ViewServiceProvider), object(HtmlServiceProvider), object(ExcelServiceProvider), object(DatatablesServiceProvider), object(AppServiceProvider), object(AuthServiceProvider), object(EventServiceProvider), object(RouteServiceProvider)), object(Closure)) in Application.php line 753
at Application->boot() in BootProviders.php line 17
at BootProviders->bootstrap(object(Application)) in Application.php line 203
at Application->bootstrapWith(array('Illuminate\Foundation\Bootstrap\DetectEnvironment', 'Illuminate\Foundation\Bootstrap\LoadConfiguration', 'Illuminate\Foundation\Bootstrap\ConfigureLogging', 'Illuminate\Foundation\Bootstrap\HandleExceptions', 'Illuminate\Foundation\Bootstrap\RegisterFacades', 'Illuminate\Foundation\Bootstrap\RegisterProviders', 'Illuminate\Foundation\Bootstrap\BootProviders')) in Kernel.php line 253
at Kernel->bootstrap() in Kernel.php line 144
at Kernel->sendRequestThroughRouter(object(Request)) in Kernel.php line 116
at Kernel->handle(object(Request)) in index.php line 53

Answer 1

I know this issue has been resolved for a while and as I wasn't able to resolve using the proposed answer, I would like to post how it worked for me just in case others face the same issue.

# app/Providers/AppServiceProvider.php

use Illuminate\Support\Facades\URL;

I hope this may become helpful to somebody in the future.