Php Symfony 3.3 ContextErrorException

我有两个实体，如下所示：

    <?php
// src/coreBundle/Entity/model.php
namespace coreBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use coreBundle\Entity\brand;

/**
*@ORM\Entity
*@ORM\Table(name="model")
*/
class model
{
    /**
    * @ORM\ManyToOne(targetEntity="brand", inversedBy="models")
    * @ORM\JoinColumn(name="brand_id", referencedColumnName="id")
    */
    private $brands;

    <?php
// src/coreBundle/Entity/brand.php
namespace coreBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use coreBundle\Entity\model;
use Doctrine\Common\Collections\ArrayCollection;

/**
*@ORM\Entity
*@ORM\Table(name="brand")
*/
class brand
{
    /**
     * ORM\OneToMany(targetEntity="model", mappedBy="brands")
     */
    private $models;
    public function __construct()
    {
        $this->models = new ArrayCollection();
    }

在执行控制器时，我遇到以下异常

可捕获的致命错误：传递给Symfony\Component\HttpFoundation\Session\AttributeBag:：initialize（）的参数1必须是在第248行的C:\ledger\var\cache\dev\classes.php中调用并定义的给定对象数组类型

“model”与“brand”有多方面的关系

你能告诉我我做错了什么吗，提前谢谢

堆栈跟踪如下所示：

ContextErrorException
Symfony\Component\Debug\Exception\ContextErrorException:
Catchable Fatal Error: Argument 1 passed to Symfony\Component\HttpFoundation\Session\Attribute\AttributeBag::initialize() must be of the type array, object given, called in C:\ledger\var\cache\dev\classes.php on line 248 and defined

  at vendor\symfony\symfony\src\Symfony\Component\HttpFoundation\Session\Attribute\AttributeBag.php:57
  at Symfony\Component\HttpFoundation\Session\Attribute\AttributeBag->initialize(object(Stub))
     (var\cache\dev\classes.php:248)
  at Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->loadSession()
     (var\cache\dev\classes.php:116)
  at Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->start()
     (var\cache\dev\classes.php:192)
  at Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->getBag('attributes')
     (var\cache\dev\classes.php:540)
  at Symfony\Component\HttpFoundation\Session\Session->getAttributeBag()
     (var\cache\dev\classes.php:459)
  at Symfony\Component\HttpFoundation\Session\Session->get('_security_main')
     (vendor\symfony\symfony\src\Symfony\Component\Security\Http\Firewall\ContextListener.php:83)
  at Symfony\Component\Security\Http\Firewall\ContextListener->handle(object(GetResponseEvent))
     (var\cache\dev\classes.php:4700)
  at Symfony\Component\Security\Http\Firewall->onKernelRequest(object(GetResponseEvent))
     (vendor\symfony\symfony\src\Symfony\Bundle\SecurityBundle\EventListener\FirewallListener.php:48)
  at Symfony\Bundle\SecurityBundle\EventListener\FirewallListener->onKernelRequest(object(GetResponseEvent))
     (var\cache\dev\appDevDebugProjectContainer.php:783)
  at appDevDebugProjectContainer->{closure}(object(GetResponseEvent), 'kernel.request', object(TraceableEventDispatcher))
  at call_user_func(object(Closure), object(GetResponseEvent), 'kernel.request', object(TraceableEventDispatcher))
     (vendor\symfony\symfony\src\Symfony\Component\EventDispatcher\Debug\WrappedListener.php:112)
  at Symfony\Component\EventDispatcher\Debug\WrappedListener->__invoke(object(GetResponseEvent), 'kernel.request', object(ContainerAwareEventDispatcher))
  at call_user_func(object(WrappedListener), object(GetResponseEvent), 'kernel.request', object(ContainerAwareEventDispatcher))
     (var\cache\dev\classes.php:3429)
  at Symfony\Component\EventDispatcher\EventDispatcher->doDispatch(array(object(WrappedListener), object(WrappedListener), object(WrappedListener), object(WrappedListener), object(WrappedListener), object(WrappedListener), object(WrappedListener)), 'kernel.request', object(GetResponseEvent))
     (var\cache\dev\classes.php:3344)
  at Symfony\Component\EventDispatcher\EventDispatcher->dispatch('kernel.request', object(GetResponseEvent))
     (vendor\symfony\symfony\src\Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher.php:146)
  at Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher->dispatch('kernel.request', object(GetResponseEvent))
     (var\cache\dev\classes.php:4380)
  at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), 1)
     (var\cache\dev\classes.php:4350)
  at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), 1, true)
     (vendor\symfony\symfony\src\Symfony\Component\HttpKernel\Kernel.php:171)
  at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
     (web\app_dev.php:30)
  at require('C:\\ledger\\web\\app_dev.php')
     (vendor\symfony\symfony\src\Symfony\Bundle\WebServerBundle\Resources\router.php:42)

---

可能是另一个原因导致了可捕获的致命错误：我有同样的问题，并发现控制器不是utf8编码的。我将编码更改为utf8，清除缓存-错误不会再次发生。

错误看起来与代码无关。你能粘贴完整的stacktrace吗？你可以编辑这个问题，这几乎是不可读的。当然，这对任何人来说都不是一件容易的事——除了它似乎与缓存有争论之外，请尝试

bin/console cache:clear

，看看这是否有什么不同。还有一个

bin/console原则：schema:validate

，它可能会排除实体映射是否有错误——并且作为一个注意事项，当使用关联时，mappedBy/inversedBy是属性而不是类，很难判断（除非这是您的完整代码）但是你可能会尝试做后者。@JennevanderMeer我已经更新了映射和反转属性，你现在可以看一下吗？正如您所提到的，我遇到了模式验证问题，*关联coreBundle\Entity\model#brands指的是不存在的反向边字段coreBundle\Entity\brand#models

ContextErrorException
Symfony\Component\Debug\Exception\ContextErrorException:
Catchable Fatal Error: Argument 1 passed to Symfony\Component\HttpFoundation\Session\Attribute\AttributeBag::initialize() must be of the type array, object given, called in C:\ledger\var\cache\dev\classes.php on line 248 and defined

  at vendor\symfony\symfony\src\Symfony\Component\HttpFoundation\Session\Attribute\AttributeBag.php:57
  at Symfony\Component\HttpFoundation\Session\Attribute\AttributeBag->initialize(object(Stub))
     (var\cache\dev\classes.php:248)
  at Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->loadSession()
     (var\cache\dev\classes.php:116)
  at Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->start()
     (var\cache\dev\classes.php:192)
  at Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->getBag('attributes')
     (var\cache\dev\classes.php:540)
  at Symfony\Component\HttpFoundation\Session\Session->getAttributeBag()
     (var\cache\dev\classes.php:459)
  at Symfony\Component\HttpFoundation\Session\Session->get('_security_main')
     (vendor\symfony\symfony\src\Symfony\Component\Security\Http\Firewall\ContextListener.php:83)
  at Symfony\Component\Security\Http\Firewall\ContextListener->handle(object(GetResponseEvent))
     (var\cache\dev\classes.php:4700)
  at Symfony\Component\Security\Http\Firewall->onKernelRequest(object(GetResponseEvent))
     (vendor\symfony\symfony\src\Symfony\Bundle\SecurityBundle\EventListener\FirewallListener.php:48)
  at Symfony\Bundle\SecurityBundle\EventListener\FirewallListener->onKernelRequest(object(GetResponseEvent))
     (var\cache\dev\appDevDebugProjectContainer.php:783)
  at appDevDebugProjectContainer->{closure}(object(GetResponseEvent), 'kernel.request', object(TraceableEventDispatcher))
  at call_user_func(object(Closure), object(GetResponseEvent), 'kernel.request', object(TraceableEventDispatcher))
     (vendor\symfony\symfony\src\Symfony\Component\EventDispatcher\Debug\WrappedListener.php:112)
  at Symfony\Component\EventDispatcher\Debug\WrappedListener->__invoke(object(GetResponseEvent), 'kernel.request', object(ContainerAwareEventDispatcher))
  at call_user_func(object(WrappedListener), object(GetResponseEvent), 'kernel.request', object(ContainerAwareEventDispatcher))
     (var\cache\dev\classes.php:3429)
  at Symfony\Component\EventDispatcher\EventDispatcher->doDispatch(array(object(WrappedListener), object(WrappedListener), object(WrappedListener), object(WrappedListener), object(WrappedListener), object(WrappedListener), object(WrappedListener)), 'kernel.request', object(GetResponseEvent))
     (var\cache\dev\classes.php:3344)
  at Symfony\Component\EventDispatcher\EventDispatcher->dispatch('kernel.request', object(GetResponseEvent))
     (vendor\symfony\symfony\src\Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher.php:146)
  at Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher->dispatch('kernel.request', object(GetResponseEvent))
     (var\cache\dev\classes.php:4380)
  at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), 1)
     (var\cache\dev\classes.php:4350)
  at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), 1, true)
     (vendor\symfony\symfony\src\Symfony\Component\HttpKernel\Kernel.php:171)
  at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
     (web\app_dev.php:30)
  at require('C:\\ledger\\web\\app_dev.php')
     (vendor\symfony\symfony\src\Symfony\Bundle\WebServerBundle\Resources\router.php:42)