I'm using Laravel-Permissions and wrote in rotes\web.php:
Route::group(['middleware' => ['role:admin']], function () {
    Route::get('/admin', function () {
        return "Test";
    });
});
I added in app\Http\Kernel.php :
protected $routeMiddleware = [
    // ...
    'role' => \Spatie\Permission\Middlewares\RoleMiddleware::class,
    'permission' => \Spatie\Permission\Middlewares\PermissionMiddleware::class,
    'role_or_permission' => \Spatie\Permission\Middlewares\RoleOrPermissionMiddleware::class,
];
Error:

 
     
     
     
    