我有一个问题，当我使用命令composer require st. 或 php artisan st。等等我得到这个错误：
使用版本 ^2.3 进行干预/图像 ./composer.json 已更新
php artisan 清晰编译
致命错误：未捕获的 ReflectionException：D:\Programy\Wamp\www\blog\vendor\laravel\framework\src\Illuminate\Container\Container.php:738 堆栈跟踪中不存在类日志：
0 D:\Programy\Wamp\www\blog\vendor\laravel\framework\src\Illuminate\Container\Container.php(738):
ReflectionClass->__construct('log')
1 D:\Programy\Wamp\www\blog\vendor\laravel\framework\src\Illuminate\Container\Container.php(633):
Illuminate\Container\Container->build('log', Array)
2 D:\Programy\Wamp\www\blog\vendor\laravel\framework\src\Illuminate\Foundation\Application.php(697):
Illuminate\Container\Container->make('log', Array)
3 D:\Programy\Wamp\www\blog\vendor\laravel\framework\src\Illuminate\Container\Container.php(853):
Illuminate\Foundation\Application->make('log')
4 D:\Programy\Wamp\www\blog\vendor\laravel\framework\src\Illuminate\Container\Container.php(808):
照亮\容器\容器->resolveClass(对象(ReflectionParameter))
5 D:\Programy\Wamp\www\blog\vendor\laravel\framework\src\Illuminate\Container\Container.php(777):
Il 在 D:\Programy\Wamp\www\blog\vendor\laravel\framework\src\Illuminate\Container\Container.php 第 738 行 PHP 致命错误：未捕获的 ReflectionException：D:\Programy\Wamp 中不存在类日志\www\blog\vendor\laravel\framework\src\Illuminate\Container\Container.php:738 堆栈跟踪：
0 D:\Programy\Wamp\www\blog\vendor\laravel\framework\src\Illuminate\Container\Container.php(738):
ReflectionClass->__construct('log')
1 D:\Programy\Wamp\www\blog\vendor\laravel\framework\src\Illuminate\Container\Container.php(633):
Illuminate\Container\Container->build('log', Array)
2 D:\Programy\Wamp\www\blog\vendor\laravel\framework\src\Illuminate\Foundation\Application.php(697):
Illuminate\Container\Container->make('log', Array)
3 D:\Programy\Wamp\www\blog\vendor\laravel\framework\src\Illuminate\Container\Container.php(853):
Illuminate\Foundation\Application->make('log')
4 D:\Programy\Wamp\www\blog\vendor\laravel\framework\src\Illuminate\Container\Container.php(808):
照亮\容器\容器->resolveClass(对象(ReflectionParameter))
5 D:\Programy\Wamp\www\blog\vendor\laravel\framework\src\Illuminate\Container\Container.php(777):
Il 在 D:\Programy\Wamp\www\blog\vendor\laravel\framework\src\Illuminate\Container\Container.php 第 738 行脚本 php artisan 明确编译处理返回错误的 pre-update-cmd 事件
安装失败，将 ./composer.json …