问题

Laravel 5.5
最近新学php，想用laravel做个小网站入入门，发现laravel自带的注册功能没有进行邮箱激活功能，就打算根据这篇文章用这个包laravel-user-verification实现，跟着做一半之后发现不太一样，就打算删了自己实现算了，所以打算删了这个包。
然后执行composer删除命令的时候，报了错。

过程

执行:

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$ composer remove jrean/laravel-user-verification

报了这个错:

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Dependency "laravel/framework" is also a root requirement， but is not explicitly whitelisted. Ignoring.
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 0 installs， 0 updates， 1 removal
  - Removing jrean/laravel-user-verification (v5.0.1)
Writing lock file
Generating optimized autoload files
> Illuminate\Foundation\ComposerScripts::postAutoloadDump
> @php artisan package:discover
                                                                            
  [Symfony\Component\Debug\Exception\FatalThrowableError]                   
  Class 'Jrean\UserVerification\UserVerificationServiceProvider' not found  
                                                                            
Script @php artisan package:discover handling the post-autoload-dump event returned with error code 1
Removal failed， reverting ./composer.json to its original content.

解决

查了下stackoverflow看到个答主说把laravel项目里的config/app.php里面的providers对包的引用代码删了，就可以了，我就记起来我根据文章在config/app.php添加过代码:

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'providers' => [
    ...
    Jrean\UserVerification\UserVerificationServiceProvider::class，
]，

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'aliases' => [
    ...
    'UserVerification' => Jrean\UserVerification\Facades\UserVerification::class，
]，

所以我把这两段代码删了，再执行:

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$ composer remove jrean/laravel-user-verification

就删除成功了。