Class "view" does not exist - Laravel why?

Question

Laravel

Help me understand what the problem is
. In the local copy, everything works. I posted it on the hosting, there was a problem.
There are 2 controllers with the same structure:
GoodsController

<?php namespace Backend;
class GoodsController extends \BaseController {

MenuController

<?php namespace Backend;
class MenuController extends \BaseController {

route:

Route::group(array('prefix' => 'backend', "namespace" => '\Backend'), function () {

  Route::get('/', function() {
    if(Auth::check() && Auth::user()->role == 10) return Redirect::to('backend/goods');
    else return Redirect::to('backend/login');
  });
  Route::get('login', array('as' => 'backend.login', 'uses' => '[email protected]'));
  Route::post('login', array('as' => 'backend.login.post', 'uses' => '[email protected]'));

  Route::group(array('before' => 'auth|admin'), function () {

    Route::get('logout', '[email protected]');

    Route::resource("goods", 'GoodsController');
    Route::resource("menu", "MenuController");

  });
});

When I try to enter /backend/goods everything works
If I open /backend/menu I get an error:

ReflectionException (-1)
Class \Backend\MenuController does not exist
...
$reflector = new ReflectionClass($concrete);

Both work on local env, on hosting only 1, maybe because of php version 5.6 and 5.5 (hosting)

Answer 1

composer dumpautoload -o
Did? Should help.
99% of problems with reflection in Laravel are solved by the team above.