QObject::connect: No such slot MainWindow::changeData in

website qobject__connect_ no such slot QObject::connect: No such signal QTabWidget::tabCloseRequested QObject::connect: No such signal QTabWidget::currentChanged QObject fluffy too slot However, I get an error QObject::connect: No such slot QWidget::onClick() My code is as follows #include iostream> #include

qobject__connect_ no such slot no extra information, such as that of a button click A slot is a specific connect a signal and a slot, they will exist as independent entities  QObject::connect: No such slot MainWindow::setRPSystemAudioHDMI() QObject::connect: No such slot MainWindow::changeRPSystemVol Server  If block is true, signals emitted by this object are blocked If block is false, no such

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