Laravel 动作未定义

从Laravel 4.2更新到5.0后，我的应用程序几乎每一页都会收到以下消息:

InvalidArgumentException in UrlGenerator.php line 561: Action ArticlesController@create not defined.

在我的routes.php文件中，我有:

Route::get('articles/create', ['as' => 'articles.create', 'uses' => 'ArticlesController@create']);
Route::post('articles/create', ['as' => 'articles.create.handle', 'uses' => 'ArticlesController@handleCreate']);

在我的控制器中:

class ArticlesController extends Controller {

    public function create()
    {
        $input=null;
        if (Input::old()) {
            $input = Input::old();
        }
        $tagsJson = Tag::all()->toJson();
        $categories = ArticleCategory::all();
        return View::make('admin.articles.create', compact(array('tagsJson', 'categories', 'input')));
    }

    public function handleCreate()
    {
        $input = Input::all();

        if ($input['op']=="preview") {
            return redirect()->action('ArticlesController@create')->withInput();
        } else if ($input['op']=="post") {
            //
        }

    }
}

The error I get comes from this line:

return redirect()->action('ArticlesController@create')->withInput();

有什么帮助吗？