Laravel 5 POST method is not working

My Laravel get method is working but post method is not working.

controller

public function create(Request $request)
{

    if (Request::isMethod('post'))
    {
        echo 'text';
        exit;
    }

}

blade

<form action="" method="POST">
<input name="name" class="form-control" type="text">    
<input name="email" class="form-control" type="email">  
<input type="submit" class="btn btn-primary btn-lg btn-block" name="submit">Submit</a>      
</form>

route

Route::post('/create', 'Tools\PostController@create')->name('create');

error

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via Chebli Mohamed