Laravel Artisan event:generate 命令抛出致命错误

Question

我正在关注 Laravel 5.7 关于事件注册和生成的官方文档：https://laravel.com/docs/5.7/events#generating-events-and-listeners

我有一个 EventServiceProvider 定义了以下事件：

<?php

namespace App\Providers;

use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider;

class EventServiceProvider extends ServiceProvider
{

    /**
     * The event handler mappings for the application.
     *
     * @var array
     */
    protected $listen = [
        'App\Events\FormBeforeCreate' => [
            'App\Listeners\WebhookBeforeCreate',
        ],
        'App\Events\FormAfterCreate' => [
            'App\Listeners\NotifyAfterCreate',
            'App\Listeners\WebhookAfterCreate',
        ],
        'App\Events\FormBeforeUpdate' => [
            'App\Listeners\WebhookBeforeUpdate',
        ],
        'App\Events\FormAfterUpdate' => [
            'App\Listeners\NotifyAfterUpdate',
            'App\Listeners\WebhookAfterUpdate',
        ],
        'App\Events\FormBeforeDelete' => [
            'App\Listeners\WebhookBeforeDelete',
        ],
        'App\Events\FormAfterDelete' => [
            'App\Listeners\NotifyAfterDelete',
            'App\Listeners\WebhookAfterDelete',
        ],
        'App\Events\FormBeforeSave' => [
            'App\Listeners\WebhookBeforeSave',
        ],
        'App\Events\FormAfterSave' => [
            'App\Listeners\NotifyAfterSave',
            'App\Listeners\WebhookAfterSave',
        ],
    ];

    /**
     * The subscriber classes to register.
     *
     * @var array
     */
    protected $subscribe = [
        'App\Listeners\UserEventSubscriber',
    ];

    /**
     * Register any other events for your application.
     *
     * @return void
     */
    public function boot()
    {
        parent::boot();
    }
}

错误：

当我运行命令 php artisan event:generate 我得到以下错误：

PHP Fatal error:  Call to a member function listens() on null in /app/vendor/laravel/framework/src/Illuminate/Foundation/Console/EventGenerateCommand.php on line 35

                                                           
  [Symfony\Component\Debug\Exception\FatalErrorException]  
  Call to a member function listens() on null

根据文档，它应该这样做：

This command will generate any events or listeners that are listed in your EventServiceProvider. Events and listeners that already exist will be left untouched

我不明白我错过了什么，因为我在网上搜索没有发现任何类似的错误

Answer 1

这是返回的行 null:

$providers = $this->laravel->getProviders(EventServiceProvider::class);

因此，您的 EventServiceProvider 存在一些问题...请尝试使用此：

<?php

namespace App\Providers;

use Illuminate\Support\Facades\Event;
use Illuminate\Auth\Events\Registered;
use Illuminate\Auth\Listeners\SendEmailVerificationNotification;
use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider;

class EventServiceProvider extends ServiceProvider
{
    /**
     * The event listener mappings for the application.
     *
     * @var array
     */
    protected $listen = [
        'App\Events\FormBeforeCreate' => [
            'App\Listeners\WebhookBeforeCreate',
        ],
        'App\Events\FormAfterCreate' => [
            'App\Listeners\NotifyAfterCreate',
            'App\Listeners\WebhookAfterCreate',
        ],
        'App\Events\FormBeforeUpdate' => [
            'App\Listeners\WebhookBeforeUpdate',
        ],
        'App\Events\FormAfterUpdate' => [
            'App\Listeners\NotifyAfterUpdate',
            'App\Listeners\WebhookAfterUpdate',
        ],
        'App\Events\FormBeforeDelete' => [
            'App\Listeners\WebhookBeforeDelete',
        ],
        'App\Events\FormAfterDelete' => [
            'App\Listeners\NotifyAfterDelete',
            'App\Listeners\WebhookAfterDelete',
        ],
        'App\Events\FormBeforeSave' => [
            'App\Listeners\WebhookBeforeSave',
        ],
        'App\Events\FormAfterSave' => [
            'App\Listeners\NotifyAfterSave',
            'App\Listeners\WebhookAfterSave',
        ],
    ];

    /**
     * Register any events for your application.
     *
     * @return void
     */
    public function boot()
    {
        parent::boot();

        //
    }
}

Answer 2

不好意思，昨天晚上好像真的很累，我们的项目运行在Docker，我是运行在docker外面的命令，而不是在docker里面。

我不知道为什么它特别显示了这个错误，但是一旦我运行 docker 中的命令正确生成所有文件。

Laravel Artisan event:generate 命令抛出致命错误

Laravel Artisan event:generate command throwing a Fatal error

php

laravel

laravel-5

laravel-artisan

错误：