为什么生产环境返回200，body为空？

Question

我有一个用Symfony 2.2.1开发的网站。我使用dev环境开发了它，它工作得很好。问题是当我尝试生产环境时。我收到了200，但身体是空的。

我的调查：

Symfony不会在日志中写入任何内容。

调用了$response = $kernel->handle($request);，但下一行$response->send();不调用。这些行位于app.php文件中

如果我将app.php文件中的$kernel = new AppKernel('prod', false);替换为$kernel = new AppKernel('prod', true);，则一切正常。

我的设置可能有什么问题？

我已经安装了包: FOSRestBundle，FOSUser，Sonata-Admin和Sonata-User。

Answer 1

谢谢你，@cheesemacfly！日志：

[Wed May 15 18:35:06 2013] [error] [client X.X.X.X] PHP Fatal error: Uncaught exception 'Symfony\\Component\\DependencyInjection\\Exception\\ServiceNotFoundException' with message 'The service "sonata.block.renderer.traceable" has a dependency on a non-existent service "debug.stopwatch".' in /home/inqbarna/ZendProjects/Symfony/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Compiler/CheckExceptionOnInvalidReferenceBehaviorPass.php:59\nStack trace:\n#0 /home/inqbarna/ZendProjects/Symfony/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Compiler/CheckExceptionOnInvalidReferenceBehaviorPass.php(43): Symfony\\Component\\DependencyInjection\\Compiler\\CheckExceptionOnInvalidReferenceBehaviorPass->processReferences(Array)\n#1 /home/inqbarna/ZendProjects/Symfony/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Compiler/CheckExceptionOnInvalidReferenceBehaviorPass.php(37): Symfony\\Component\\DependencyInjection\\Compiler\\CheckExceptionOnInvalidReferenceBehaviorPass->processDefinition(Object(Symfony\\Component\\DependencyInjection\\Definition))\n#2 /home in /home/inqbarna/ZendProjects/Symfony/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Compiler/CheckExceptionOnInvalidReferenceBehaviorPass.php on line 59

也就是说，Sonata-Admin需要Sonata-block，而这个有一个问题。

解决方案是：[WIP] gracefully handle the absence of the debug.stopwatch service.，the problem is：

• The service "sonata.block.renderer.traceable" has a dependency on a non-existent service "debug.stopwatch"，