symfony - Symfony Error 500 when create query by find() or findlALL()

Question

When I execute this query I get correct result

    $entity = $em->getRepository('SurgeryPatientBundle:Visits')
                 ->countDoctorVisits(13, '2013-03-01', '2013-05-30');

But If look like this

$entity = $em->getRepository('SurgeryPatientBundle:Visits')->findAll();

I get Error 500, /var/log/mysql.err is empty also /var/log/mysql.log

What and how I should show ? And how fixed this

Answer 1

我有同样的问题，这是教义缓存中的错误。仔细检查您的缓存目录和所有子目录是否具有 755 权限

更具体地说，它无法在 app\cache\dev\doctrine\orm\Proxies 目录中写入其中一个代理文件...手动创建它也有效（要获得文件名，请查看日志文件）