In my Laravel app I'm splitting the front end and back end code into folder. These are app/Http/Controllers/BackEnd and app/Http/Controllers/FrontEnd. Rather than type all that out on every file I thought it would be easier to define two namespaces, BackEnd and FrontEnd. I've edited my composer file to this:
"autoload": {
    "classmap": [
        "app/Models",
        "database"
    ],
    "psr-4": {
        "App\\": "app/",
        "BackEnd\\": "app/Http/Controllers/BackEnd",
        "FrontEnd\\": "app/Http/Controllers/FrontEnd"
    }
},
I then ran composer autodump and set up my route file like this:
Route::group(['prefix' => 'webman', 'middleware' => 'auth', 'namespace' => 'BackEnd'], function()
{
   Route::get('/', ['as' => 'webmanHome', 'uses' => 'HomeController@index']); 
});
But when I browse to localhost:8000/webman/ I just get an error, Class App\Http\Controllers\BackEnd\HomeController does not exist. The controller does exist, this is the file:
<?php namespace BackEnd;
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
class HomeController extends Controller {
    /**
     * Display the admin home page, showing the front-end menu and "apps" as links to other sections of the ACP.
     *
     * @param Reqeust       $request
     *
     * @return View
     */
    public function index(Request $request)
    {
        return view('backend.index');
    }
}
I've checked vendor/composer/autoload_psr4.php to make sure that the namespace is being defined and it is, this is in the array returned 'BackEnd\\' => array($baseDir . '/app/Http/Controllers/BackEnd'),.
Strangely if I use <?php namespace App\Http\Controllers\BackEnd; at the top of HomeController.php then everything works, why? What am I missing? Why can't autoload find the file with just BackEnd?
                        
When setting
namespaceinRoute::group()it is actually appending that toApp\Http\Controllers. What you could do is remove it and reference the full path like so: