laravel试图组件开发错误

Question

  laravel 中App/http/ViewComposer 添加组件代码

<?php
namespace App\Http\ViewComposer;

use Illuminate\Contracts\View\View;
class ViewComposer
{
    public function compose(View $view)
    {
        //$chq = 'gljglkdflgjdfl';
        //$view->with('navi',compact('chq'));
         $view->with('chq','jgldjsglfsdjlgfds');
        //$view->withNmae('navi');
    }
}

服务中注册代码：

<?php

namespace App\Providers;

use Illuminate\Support\ServiceProvider;
use DB,View;
class ViewServiceProvider extends ServiceProvider
{
    /**
     * Bootstrap the application services.
     *
     * @return void
     */
    public function boot()
    {
        /*View::composer('navi', function($view){
            $view->with('chq', 'jvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv');
        });*/
        View::composer('navi', 'App\Http\ViewComposer\ViewComposer');
    }

    /**
     * Register the application services.
     *
     * @return void
     */
    public function register()
    {
        //
    }
}

同时在app.php中也添加了相应的代码

App\Providers\ViewServiceProvider::class,

但是我在调用navi这个视图中调用{{$chq}}的时候报错了，这个是怎么回事