php - Laravel 5.2 Auth not Working

I want to make a authentication user login and register in laravel. But when I submit to save the register info..It's showing

Object not found!

The requested URL was not found on this server. The link on the referring page seems to be wrong or outdated. Please inform the author of that page about the error. If you think this is a server error, please contact the webmaster.

Here is my authController:

<?php

namespace App\Http\Controllers\Auth;

use App\User;
use Validator;
use App\Http\Controllers\Controller;
use Illuminate\Foundation\Auth\ThrottlesLogins;
use Illuminate\Foundation\Auth\AuthenticatesAndRegistersUsers;

class AuthController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Registration & Login Controller
    |--------------------------------------------------------------------------
    |
    | This controller handles the registration of new users, as well as the
    | authentication of existing users. By default, this controller uses
    | a simple trait to add these behaviors. Why don't you explore it?
    |
    */

    use AuthenticatesAndRegistersUsers, ThrottlesLogins;

    /**
     * Where to redirect users after login / registration.
     *
     * @var string
     */


    /**
     * Create a new authentication controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('guest', ['except' => 'logout']);
    }

    /**
     * Get a validator for an incoming registration request.
     *
     * @param  array  $data
     * @return \Illuminate\Contracts\Validation\Validator
     */
    protected function validator(array $data)
    {
        return Validator::make($data, [
            'name' => 'required|max:255',
            'email' => 'required|email|max:255|unique:users',
            'password' => 'required|confirmed|min:6',
        ]);
    }


    protected function create(array $data)
    {
        return User::create([
            'name' => $data['name'],
            'email' => $data['email'],
            'password' => bcrypt($data['password']),
        ]);
    }

    protected function getLogin() {
        return View('auth.login');
    }

    protected function postLogin(LoginRequest $request) {
        if ($this->auth->attempt($request->only('email', 'password'))) {
                return redirect()->route('/');
          //  return view('course.index');
        }

        return redirect('auth/login')->withErrors([
            'email' => 'The email or the password is invalid. Please try again.',
        ]);
    }

    /* Register get post methods */
    protected function getRegister() {
        return View('auth.register');
    }

    protected function postRegister(RegisterRequest $request) {
        $this->user->name = $request->name;
        $this->user->email = $request->email;
        $this->user->password = bcrypt($request->password);
        $this->user->save();
        return redirect('auth.login');
    }


  protected function getLogout()
    {
        $this->auth->logout();
        return redirect('auth.login'); 
    } 
    protected $redirectTo = '/course';
    protected $loginPath = '/auth/login';

}

Here is my login.blade.php file:

    <form method="POST" action="/auth/login">
        {!! csrf_field() !!}

        <div>
            Email
            <input type="email" name="email" value="{{ old('email') }}">
        </div>

        <div>
            Password
            <input type="password" name="password" id="password">
        </div>

        <div>
            <input type="checkbox" name="remember"> Remember Me
        </div>

        <div>
            <button type="submit">Login</button>
        </div>
    </form>

Here is my register.blade.php file

<form method="POST" action="/auth/register">
    {!! csrf_field() !!}

    <div>
        Name
        <input type="text" name="name" value="{{ old('name') }}">
    </div>

    <div>
        Email
        <input type="email" name="email" value="{{ old('email') }}">
    </div>

    <div>
        Password
        <input type="password" name="password">
    </div>

    <div>
        Confirm Password
        <input type="password" name="password_confirmation">
    </div>

    <div>
        <button type="submit">Register</button>
    </div>
</form>

And Here is the routes.php

<?php

/*
|--------------------------------------------------------------------------
| Routes File
|--------------------------------------------------------------------------
|
| Here is where you will register all of the routes in an application.
| It's a breeze. Simply tell Laravel the URIs it should respond to
| and give it the controller to call when that URI is requested.
|
*/

Route::get('/', function () {
    return view('welcome');
});

Route::get('/all_user',function(){
    return view('all_user');
});

Route::get('all_user/{id}/{name}',function($id,$name){      // Here we pass the peremeter in url all_user
    return 'User '.$id." ".$name;                         // with the parameter id and name
});

Route::get('home','basicController@index'); // Here Home is the URL and it 
                                            //execute the basiccontroller index page
Route::get('about','basicController@about');

Route::resource('course','courseController');

/*
|--------------------------------------------------------------------------
| Application Routes
|--------------------------------------------------------------------------
|
| This route group applies the "web" middleware group to every route
| it contains. The "web" middleware group is defined in your HTTP
| kernel and includes session state, CSRF protection, and more.
|
*/


Route::group(['middleware' => ['web']], function () {
   Route::get('auth/login', 'Auth\AuthController@getLogin');
Route::post('auth/login', 'Auth\AuthController@postLogin');
Route::get('auth/logout', 'Auth\AuthController@getLogout');

// Registration routes...
Route::get('auth/register', 'Auth\AuthController@getRegister');
Route::post('auth/register', 'Auth\AuthController@postRegister');
});

via Chebli Mohamed