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QObject connect:无法对"QItemSelection"类型的参数进行排队

我在时间23:59:59传递到第二天时收到以下消息.我不知道(因为代码是由其他人编写的)它来自哪里.有谁能建议如何找出问题?谢谢!

QObject::connect: Cannot queue arguments of type 'QItemSelection'
(Make sure 'QItemSelection' is registered using qRegisterMetaType().)
QObject::connect: Cannot queue arguments of type 'QItemSelection'
(Make sure 'QItemSelection' is registered using qRegisterMetaType().)
QObject::connect: Cannot queue arguments of type 'QItemSelection'
(Make sure 'QItemSelection' is registered using qRegisterMetaType().)
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qt signals-slots

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