Declaration must be compatible

[ThomasTr]

Hi,

get this error after upgrade to latest version:

Compile Error: Declaration of JMS\Serializer\XmlSerializationVisitor::startVisitingObject(JMS\Serializer\Metadata\ClassMetadata $metadata, JMS\Serializer\object $data, array $type): void must be compatible with JMS\Serializer\Visitor\SerializationVisitorInterface::startVisitingObject(JMS\Serializer\Metadata\ClassMetadata $metadata, JMS\Serializer\Visitor\object $data, array $type): void

Stacktrace

  at vendor/jms/serializer/src/XmlSerializationVisitor.php:18
  at vendor/symfony/debug/DebugClassLoader.php:151
  at Symfony\Component\Debug\DebugClassLoader->loadClass()
     (vendor/jms/serializer/src/Visitor/Factory/XmlSerializationVisitorFactory.php:42)
  at spl_autoload_call()
     (vendor/jms/serializer/src/Visitor/Factory/XmlSerializationVisitorFactory.php:42)
  at JMS\Serializer\Visitor\Factory\XmlSerializationVisitorFactory->getVisitor()
     (vendor/jms/serializer/src/Serializer.php:145)
  at JMS\Serializer\Serializer->getVisitor()
     (vendor/jms/serializer/src/Serializer.php:157)
  at JMS\Serializer\Serializer->serialize()
     (src/Controller/ExportController.php:58)
  at App\Controller\ExportController->exportServiceReportAction()
     (vendor/symfony/http-kernel/HttpKernel.php:150)
  at Symfony\Component\HttpKernel\HttpKernel->handleRaw()
     (vendor/symfony/http-kernel/HttpKernel.php:67)
  at Symfony\Component\HttpKernel\HttpKernel->handle()
     (vendor/symfony/http-kernel/Kernel.php:198)
  at Symfony\Component\HttpKernel\Kernel->handle()
     (public/index.php:34)
  at {main}()
     (public/index.php:0)

The Part in the exportServiceReportAction()

        $xml = $serializer->serialize($rma, 'xml', SerializationContext::create()->setGroups(['exportServiceReport']));

Installed versions:
jms/serializer 2.0.2
jms/serializer-bundle 3.0.1

[goetas]

which PHP version are you running?

[goetas]

It looks you are running php < 7.2

[ThomasTr]

Hi, thank you for your hint. Have multiple php versions installed an this project was running on 7.1.8.
Switched to 7.2 and it works fine.

You can close this issue.

[goetas]

👍

[LesovoyRoman]

👍

[mustapha-ghlissi]

Solution is to update you PHP to the version required by JMS