QT no such slot

qobject__connect_ no such slot
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Object::connect:No such slot 我自己定义的slot怎么会说没有呢？？ public: FtpLogin; ~FtpLogin(); bool logIn(

QObject::connect: No such slot AbstractViewWindow::onPagePrevious() ##PB connect 1onPagePrevious()> QObject::connect: No such slot

hoki 168 slot QObject::connect: No such slot FenCalculatrice::FenCalculatrice::calculerOperation() in Designer_training: 10 QObject

slot อันดับ 1 QObject::connect: No such signal QRTImpl::TaskHelper:: Or did you already switch from the old signal-slot-mechanism to the new one which is