Undefined variable: errors in Laravel 5.2 - php

Question

I get this error exception in Laravel 5.2. I am trying to access auth/login
Undefined variable: errors
Undefined variable: errors (View:
C:\xampp\htdocs\tutorials\laravel\resources\views\auth\login.blade.php)
This is my routes.php
Route::group(['middleware' => ['web']], function () {
Route::get('/', function () {
return view('welcome');
});
Route::get('about' , 'PagesController#about');
Route::resource('articles' , 'ArticlesController');
Route::controllers([
'auth' => 'Auth\AuthController',
'password' => 'Auth\PasswordController'
]);
});
This is auth/login.blade.php
#extends('app')
#section('content')
<div class="container-fluid">
<div class="row">
<div class="col-md-8 col-md-offset-2">
<div class="panel panel-default">
<div class="panel-heading">Login</div>
<div class="panel-body">
#if (count($errors) > 0)
<div class="alert alert-danger">
<strong>Whoops!</strong> There were some problems with your input.<br><br>
<ul>
#foreach ($errors->all() as $error)
<li>{{ $error }}</li>
#endforeach
</ul>
</div>
#endif
<form class="form-horizontal" role="form" method="POST" action="{{ url('/auth/login') }}">
{!! csrf_field() !!}
<div class="form-group">
<label class="col-md-4 control-label">E-Mail Address</label>
<div class="col-md-6">
<input type="email" class="form-control" name="email" value="{{ old('email') }}">
</div>
</div>
<div class="form-group">
<label class="col-md-4 control-label">Password</label>
<div class="col-md-6">
<input type="password" class="form-control" name="password">
</div>
</div>
<div class="form-group">
<div class="col-md-6 col-md-offset-4">
<div class="checkbox">
<label>
<input type="checkbox" name="remember"> Remember Me
</label>
</div>
</div>
</div>
<div class="form-group">
<div class="col-md-6 col-md-offset-4">
<button type="submit" class="btn btn-primary">Login</button>
<a class="btn btn-link" href="{{ url('/password/email') }}">Forgot Your Password?</a>
</div>
</div>
</form>
</div>
</div>
</div>
</div>
</div>
#endsection

Answer 1

protected $middleware = [
\Illuminate\Session\Middleware\StartSession::class,
\Illuminate\View\Middleware\ShareErrorsFromSession::class,
];