当我更改命名空间时，为什么我的应用程序会崩溃？

Question

我正在按照Easy Laravel 5 一书中给出的材料来学习 Laravel。所以我按照指示创建了应用，当我访问localhost:8000时，我看到了欢迎页面。

然后我给出了改名命令：

php artisan app:name todoparrot

系统以Application namespace set! 响应。但是现在当我重新加载localhost:8000 时，我什么也看不到，并且为应用程序提供服务的终端给了我一长串错误：

PHP Fatal error:  Uncaught exception 'ReflectionException' with message 'Class todoparrot\Console\Kernel does not exist' in /media/common/htdocs/todoparrot/vendor/laravel/framework/src/Illuminate/Container/Container.php:776
Stack trace:
#0 /media/common/htdocs/todoparrot/vendor/laravel/framework/src/Illuminate/Container/Container.php(776): ReflectionClass->__construct('todoparrot\Cons...')
#1 /media/common/htdocs/todoparrot/vendor/laravel/framework/src/Illuminate/Container/Container.php(656): Illuminate\Container\Container->build('todoparrot\Cons...', Array)
#2 /media/common/htdocs/todoparrot/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(613): Illuminate\Container\Container->make('todoparrot\Cons...', Array)
#3 /media/common/htdocs/todoparrot/vendor/laravel/framework/src/Illuminate/Container/Container.php(229): Illuminate\Foundation\Application->make('todoparrot\Cons...', Array)
#4 /media/common/htdocs/todoparrot/vendor/laravel/framework/src/Illuminate/Container/Container.php(773): Illuminate\Container\Con in /media/common/htdocs/todoparrot/vendor/laravel/framework/src/Illuminate/Container/Container.php on line 776

现在我什至无法运行artisan，因为我不断收到同样的错误。知道由于这个极其简单的更改可能会破坏什么吗？

Answer 1

重命名后试试这个命令：

composer dump-autoload

Composer 在vendor/composer/ 目录中使用您的命名空间自动加载文件。当您更改任何内容时，您需要清除它并再次生成它，该命令会执行此操作。

Answer 2

如果你运行下面的命令，它会改变所有的命名空间和路径到 todoparrot。在您的情况下，Laravel 未找到“类 todoparrot\Console\Kernel 不存在”。确保命名空间已更改为 todoparrot

php artisan app:name todoparrot

该命令会修改下面的所有文件

modified:   app/Commands/Command.php
modified:   app/Console/Commands/Inspire.php
modified:   app/Console/Kernel.php
modified:   app/Events/Event.php
modified:   app/Exceptions/Handler.php
modified:   app/Http/Controllers/Auth/AuthController.php
modified:   app/Http/Controllers/Auth/PasswordController.php
modified:   app/Http/Controllers/Controller.php
modified:   app/Http/Controllers/HomeController.php
modified:   app/Http/Controllers/WelcomeController.php
modified:   app/Http/Kernel.php
modified:   app/Http/Middleware/Authenticate.php
modified:   app/Http/Middleware/RedirectIfAuthenticated.php
modified:   app/Http/Middleware/VerifyCsrfToken.php
modified:   app/Http/Requests/Request.php
modified:   app/Http/routes.php
modified:   app/Providers/AppServiceProvider.php
modified:   app/Providers/BusServiceProvider.php
modified:   app/Providers/ConfigServiceProvider.php
modified:   app/Providers/EventServiceProvider.php
modified:   app/Providers/RouteServiceProvider.php
modified:   app/Services/Registrar.php
modified:   bootstrap/app.php
modified:   composer.json
modified:   config/app.php
modified:   config/auth.php

app/Console/Kernel.php 中的示例该命令将更改此内容

namespace App\Console;

protected $commands = [
    'App\Console\Commands\Inspire',
];

到

namespace todoparrot\Console;

protected $commands = [
    'todoparrot\Console\Commands\Inspire',
];

如果“App\”路径仍然可用，请检查文件 app/Console/Kernel.php。如果可用，请更改为“todoparrot”。

我已经尝试运行命令“php artisan app:name todoparrot”。它没有任何问题。我不知道为什么它会向你抛出错误。

Answer 3

在命令提示符下使用Ggo到C:\wamp\www\laravel\

C:\ProgramData\ComposerSetup\bin\composer dump-autoload

而不是

composer dump-autoload