Missing argument 1 for Illuminate\Support\Manager::createDriver() while using lumen 5.3

Got this error while creating a login api using lumen. Here is login function in LoginController.php

public function login(Request $request) { 

    $email = $request->get('email');
    $password = $request->get('password');
    $rules = array(
        'email' => 'required|email',
        'password' => 'required',
    );
    $validator = $request->all();
    $validation = Validator::make($validator, $rules);
    if ($validation->fails()) {
        return response()->json([
                    'message' => $validation->errors(),
                    'status' => 401
        ]);
    }
    if (Auth::attempt(['email' => $email, 'password' => $password], true) === false) { 
        return response()->json([
                    'message' => 'Your username/password combination was incorrect',
                    'email' => $email,
                    'password' => $password,
                    'status' => 401
        ]);
    }
     if (Auth::attempt(['email' => $email, 'password' => $password], true) === true) {
         return response()->json([
                    'message' => 'Login successful',
                    'username' => Auth::user()->name,
                    'id' => Auth::user()->id,
                    'status' => 200
        ]);
    }
   }

routes.php

$app->group(['prefix' => ''],function() use ($app){

    $app->post('login', 'Auth\LoginController@login');
    $app-post('forgetpassword','Auth\LoginController@forgetPassword');
});

I created config folder in root directory and create a file auth.php

<?php

return [

'defaults' => [
   'guard' => 'web',
    'passwords' => 'users',
],

'guards' => [
     'web' => [
        'driver' => 'session',
        'provider' => 'users',
    ],
     'api' => [
        'driver' => 'token',
        'provider' => 'users',
    ],
],

'providers' => [
     'users' => [
        'driver' => 'eloquent',
        'model' => App\User::class,
        'table' => 'users'
    ],
],

'passwords' => [
    //
],

];

I register this config file under bootstrap/app.php . Now when I hitting url in postman i got error. I debug error from my site error is coming from

  `Auth::attempt(['email' => $email, 'password' => $password], true)===  false`

this line. Don't have any idea about this problem please help.