PHP 致命错误：未捕获错误：找不到类'IlluminateFoundationApplication'

Question

我第一次安装laravel，在输入命令"php artisan serve"之前，一切似乎都很完美。显示

PHP Fatal error:  Uncaught Error: Class 'IlluminateFoundationApplication' not found in /home/poojitha/.composer/vendor/bin/blog/bootstrap/app.php:14
Stack trace:
#0 /home/poojitha/.composer/vendor/bin/blog/artisan(20): require_once()
#1 {main}
thrown in /home/poojitha/.composer/vendor/bin/blog/bootstrap/app.php on line 14

我试过了像这样的每一个命令

composer dump-autoload

`composer update --no-scripts`
`composer dump-autoload`
`composer install --no-scripts`

什么都不起作用

Answer 1

您的错误消息显示composer自动加载有问题。请尝试以下步骤；

1. 确保已删除vendor文件夹和composer.lock文件
2. 运行composer install