Request class does not exist in Laravel 5.3

Having error popped-up as “Request class does not exist” will have any developers think what is actually happened whenever they code in Laravel framework as the base framework for developing web application. Those error can be shown in a image or a log as shown below.

The image depicts the error mentioned before can be shown below :

As it can be seen also in the laravel.log file which is located in storage/logs :

[2017-02-12 15:54:02] local.ERROR: ReflectionException: Class App\Http\Controllers\Request does not exist in /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Routing/Route.php:339
Stack trace:
#0 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Routing/Route.php(339): ReflectionParameter->getClass()
#1 [internal function]: Illuminate\Routing\Route->Illuminate\Routing\{closure}(Object(ReflectionParameter))
#2 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Routing/Route.php(340): array_filter(Array, Object(Closure))
#3 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Routing/Router.php(814): Illuminate\Routing\Route->signatureParameters('Illuminate\\Data...')
#4 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php(39): Illuminate\Routing\Router->substituteImplicitBindings(Object(Illuminate\Routing\Route))
#5 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(137): Illuminate\Routing\Middleware\SubstituteBindings->handle(Object(Illuminate\Http\Request), Object(Closure))
#6 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(33): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#7 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php(64): Illuminate\Routing\Pipeline->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#8 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(137): Illuminate\Foundation\Http\Middleware\VerifyCsrfToken->handle(Object(Illuminate\Http\Request), Object(Closure))
#9 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(33): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#10 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/View/Middleware/ShareErrorsFromSession.php(49): Illuminate\Routing\Pipeline->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#11 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(137): Illuminate\View\Middleware\ShareErrorsFromSession->handle(Object(Illuminate\Http\Request), Object(Closure))
#12 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(33): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#13 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(64): Illuminate\Routing\Pipeline->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#14 /var/www/html/infrastructure/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(137): Illuminate\Session\Middleware\StartSession->handle(Object(Illuminate\Http\Request), Object(Closure))
#15 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(33): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#16 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): Illuminate\Routing\Pipeline->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#17 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(137): Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse->handle(Object(Illuminate\Http\Request), Object(Closure))
#18 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(33): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#19 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(59): Illuminate\Routing\Pipeline->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#20 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(137): Illuminate\Cookie\Middleware\EncryptCookies->handle(Object(Illuminate\Http\Request), Object(Closure))
#21 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(33): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#22 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(104): Illuminate\Routing\Pipeline->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#23 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Routing/Router.php(644): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#24 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Routing/Router.php(618): Illuminate\Routing\Router->runRouteWithinStack(Object(Illuminate\Routing\Route), Object(Illuminate\Http\Request))
#25 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Routing/Router.php(596): Illuminate\Routing\Router->dispatchToRoute(Object(Illuminate\Http\Request))
#26 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(267): Illuminate\Routing\Router->dispatch(Object(Illuminate\Http\Request))
#27 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http\{closure}(Object(Illuminate\Http\Request))
#28 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/CheckForMaintenanceMode.php(46): Illuminate\Routing\Pipeline->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#29 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(137): Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode->handle(Object(Illuminate\Http\Request), Object(Closure))
#30 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(33): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#31 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(104): Illuminate\Routing\Pipeline->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#32 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(149): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#33 /var/www/html/laravel-project/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(116): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter(Object(Illuminate\Http\Request))
#34 /var/www/html/laravel-project/public/index.php(53): Illuminate\Foundation\Http\Kernel->handle(Object(Illuminate\Http\Request))
#35 {main}  

The above is the error which is indicating the usage of Request class without having an appropriate knowledge of where is the location of that class would be. The main problem is to track where the location of the usage of ‘Request’ is supposed to be.

After tracking the usage of ‘Request’ class, it can be found that it is actually used in the following class file :

class ServerController extends Controller
{
#    use AuthorizesRequests, DispatchesJobs, ValidatesRequests;
        /**
         *  Display listing of Server
         */
        public function index(Request $request)
        //public function index()
        {
                $list_server = Server::orderBy('id_server','DESC')->paginate(5);
                return view('server.index',compact('list_server'))
                        ->with('i', ($request->input('page',1) - 1) * 5);
        }

The above context is definitely shown that ‘Request’ class is being used in the controller file named ‘ServerController.php’. But since there is no exact definition of using that class, certainly it will generate an error. Below is the import or the usage definition in that class :

namespace App\Http\Controllers;
use App\Server;
use Illuminate\Foundation\Bus\DispatchesJobs;
use Illuminate\Routing\Controller as BaseController;
use Illuminate\Foundation\Validation\ValidatesRequests;
use Illuminate\Foundation\Auth\Access\AuthorizesRequests;

As shown in the above usage or import definition of several additional classes, in Laravel 5.3, it is needed to define the usage or import another class named ‘Request’. Below is the definition of it should be done :

use Illuminate\Http\Request;

By the time the use keyword is defined with the ‘Illuminate\Http\Request;’ as the parameter in the controller file, if there is no other error available, the script will be executed normally.