Laravel Composer错误Uncaught ReflectionException：Container.php中不存在类日志：738

我有一个问题，当我使用命令composer需要st . 或者php artisan st . 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 clear-compiled致命错误：Uncaught ReflectionException：D：\ Programy \ Wamp \ www \ blog \ vendor \ laravel \ framework中不存在类日志\ 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）：Illuminate \ Container \ Container-> resolve Class（Object（ReflectionParameter））5 D：\ Programy \ Wamp \ www \ blog \ vendor \ laravel \ framework \ src \ Illuminate \ Container \ Container.php（777）：Il in D：\ Programy \ Wamp \ www \ blog第738行上的\ vendor \ laravel \ framework \ src \ Illuminate \ Container \ Container.php PHP致命错误：未捕获ReflectionException：D：\ Programy \ Wamp \ www \ blog \ vendor \ laravel \ framework \ src中不存在类日志\ 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（'lo g'）4 D：\ Programy \ Wamp \ www \ blog \ vendor \ laravel \ framework \ src \ Illuminate \ Container \ Container.php（808）：Illuminate \ Container \ Container-> resolveClass（Object（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 \ 738行上的Illuminate \ Container \ Container.php脚本php artisan clear-compiled处理返回的pre-update-cmd事件，错误安装失败，将./composer.json恢复为原始内容 . [RuntimeException]错误输出：PHP致命错误：未捕获ReflectionException：类日志不存在于D：\ Programy \ Wamp \ 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）：Illuminate \ Container \ Container-> resolveClass（Object（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上线738需要[--dev] [--prefer-source] [--prefer-dist] [--no-plugins] [ - no-progress] [--no-update] [--update-no-dev ] [--update-with-dependencies] [--ignore-platform-reqs] [--sort-packages] [-o | --optimize-autoloader] [-a | --classmap-authoritative] [ - ] [] ..

我试图重新安装作曲家，安装新版本的PHP（7），但仍然没有改变:(请某人知道如何解决这个问题？谢谢 .