laravel通过artisan执行passport出现There are no commands defined in the "passport" namespace.

在laravel:passport使用中，执行passport出现错误，有如下两种情况：

1、执行命令：php artisan passport:install

> php artisan migrate

Migration table created successfully.

Migrated: 2014_10_12_000000_create_users_table

Migrated: 2014_10_12_100000_create_password_resets_table

d:\web\laravel-passport>php artisan passport:install

[Symfony\Component\Console\Exception\CommandNotFoundException]

There are no commands defined in the "passport" namespace.

解决，主要是没有在config/app.php配置文件中添加

Laravel\Passport\PassportServiceProvider::class,

2、使用Artisan执行出现报错

Artisan::call('passport:install');
dd("213");

发现问题是vendor/laravel/passport文件有问题，所以重新安装解决问题