Php 无法打开自动加载文件

当我试图访问我从github克隆的项目时，我遇到以下错误：

Warning: require(H:\xampp\htdocs\schedule.dev\bootstrap/../vendor/autoload.php): failed to open stream: No such file or directory in H:\xampp\htdocs\schedule.dev\bootstrap\autoload.php on line 17

Fatal error: require(): Failed opening required 'H:\xampp\htdocs\schedule.dev\bootstrap/../vendor/autoload.php' (include_path='H:\xampp\php\PEAR') in H:\xampp\htdocs\schedule.dev\bootstrap\autoload.php on line 17

我读过一些问题，都是同一个问题，都说要跑

composer install

但执行此操作时，命令提示符中会出现错误：

Warning: require(H:\xampp\htdocs\schedule.dev\bootstrap/../vendor/autoload.php):
 failed to open stream: No such file or directory in H:\xampp\htdocs\schedule.de
v\bootstrap\autoload.php on line 17

Fatal error: require(): Failed opening required 'H:\xampp\htdocs\schedule.dev\bo
otstrap/../vendor/autoload.php' (include_path='H:\xampp\php\PEAR') in H:\xampp\h
tdocs\schedule.dev\bootstrap\autoload.php on line 17
PHP Warning:  require(H:\xampp\htdocs\schedule.dev\bootstrap/../vendor/autoload.
php): failed to open stream: No such file or directory in H:\xampp\htdocs\schedu
le.dev\bootstrap\autoload.php on line 17
PHP Fatal error:  require(): Failed opening required 'H:\xampp\htdocs\schedule.d
ev\bootstrap/../vendor/autoload.php' (include_path='H:\xampp\php\PEAR') in H:\xa
mpp\htdocs\schedule.dev\bootstrap\autoload.php on line 17
Script php artisan clear-compiled handling the pre-update-cmd event returned wit
h error code 255

---

从composer.json中的

pre-update cmd

中删除

php artisan clear compiled

，然后安装composer？是。希望在那之后它能正常工作，然后你可以添加那一行。它工作了，但现在我有另一个问题（致命错误：未捕获错误：在H:\xampp\htdocs\schedule.dev\bootstrap\app.php中找不到类'illumb\Foundation\Application'。14堆栈跟踪：#0 H:\xampp\htdocs\schedule.dev\public\index.php（36）：require_once（）#1{main}在第14行的H:\xampp\htdocs\schedule.dev\bootstrap\app.php中抛出。请尝试

composer dumpautoload

，然后再次运行它。