致命错误：AppKernel.php中找不到类

Question

我在Symfony文档之后生成了一个新的Bundle（ImgBundle），但是当在浏览器中重新加载应用程序时，它无法识别该bundle的主类。

这是我的ImgBundle.php：

<?php

namespace ImgBundle;

use Symfony\Component\HttpKernel\Bundle\Bundle;

class ImgBundle extends Bundle
{
}

AppKernel.php：

<?php

use Symfony\Component\HttpKernel\Kernel;
use Symfony\Component\Config\Loader\LoaderInterface;

class AppKernel extends Kernel
{
    public function registerBundles()
    {
        $bundles = [
        new Symfony\Bundle\FrameworkBundle\FrameworkBundle(),
        new Symfony\Bundle\SecurityBundle\SecurityBundle(),
        new Symfony\Bundle\TwigBundle\TwigBundle(),
        new Symfony\Bundle\MonologBundle\MonologBundle(),
        new Symfony\Bundle\SwiftmailerBundle\SwiftmailerBundle(),
        new Doctrine\Bundle\DoctrineBundle\DoctrineBundle(),
        new Sensio\Bundle\FrameworkExtraBundle\SensioFrameworkExtraBundle(),
        new AppBundle\AppBundle(),
        new ImgBundle\ImgBundle(),
    ];

    if (in_array($this->getEnvironment(), ['dev', 'test'], true)) {
        $bundles[] = new Symfony\Bundle\DebugBundle\DebugBundle();
        $bundles[] = new Symfony\Bundle\WebProfilerBundle\WebProfilerBundle();
        $bundles[] = new Sensio\Bundle\DistributionBundle\SensioDistributionBundle();

        if ('dev' === $this->getEnvironment()) {
            $bundles[] = new Sensio\Bundle\GeneratorBundle\SensioGeneratorBundle();
            $bundles[] = new Symfony\Bundle\WebServerBundle\WebServerBundle();
        }
    }

    return $bundles;
}

public function getRootDir()
{
    return __DIR__;
}

public function getCacheDir()
{
    return dirname(__DIR__).'/var/cache/'.$this->getEnvironment();
}

public function getLogDir()
{
    return dirname(__DIR__).'/var/logs';
}

public function registerContainerConfiguration(LoaderInterface $loader)
{
    $loader->load($this->getRootDir().'/config/config_'.$this->getEnvironment().'.yml');
}

}

这是错误：

提前致谢

Answer 1

你需要改变你的composer.json我觉得用这样的psr-4自动加载：

composer dump-autoload

需要在控制台内启动后：

{{1}}

Answer 2

使用Symfony 2.8，我不得不手动删除app / cache文件夹