When typing php artisan list in the terminal under mac, an error message appears. Can anyone please give me an answer?-PHP Chinese Network Q&A

mac下我在终端输入php artisan list会提示以下错误：

PHP Fatal error: Uncaught ReflectionException: Class config does not exist in /Users/abc/laravel/vendor/laravel/framework/src/Illuminate/Container/Container.php:752

Stack trace:

#0 /Users/abc/laravel/vendor/laravel/framework/src/Illuminate/Container/Container.php(752): ReflectionClass->__construct('config')

#1 /Users/abc/laravel/vendor/laravel/framework/src/Illuminate/Container/Container.php(631): Illuminate\Container\Container->build('config')

#2 /Users/abc/laravel/vendor/laravel/framework/src/Illuminate/Container/Container.php(586): Illuminate\Container\Container->resolve('config', Array)

#3 /Users/abc/laravel/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(721): Illuminate\Container\Container->make('config', Array)

#4 /Users/abc/laravel/vendor/laravel/framework/src/Illuminate/Container/Container.php(1195): Illuminate\Foundation\Application->make('config')

#5 /Users/abc/laravel/vendor/laravel/framework/src/Illuminate/Support/ServiceProvider.php(57): Illuminate\Container\Container->offsetGet('config')

#6 / in /Users/abc/laravel/vendor/laravel/framework/src/Illuminate/Container/Container.php on line 752

这是什么意思啊？该如何解决呢，求大神帮忙！