Object::connect: No such slot 问题解决办法- QT

Object::connect: No such slot 问题解决办法- QT qobject__connect_ no such slot emit aSignal(); Page 37 Making the connection QObject::connect( src, SIGNAL, dest, SLOT ); function name> ( arg type> slot share kredit QObject::connect: No such slot MainWindow::setRange in SerialPortData:32 QObject::connect: (receiver name: 'MainWindow

slot share kredit QObject :: connect (button, SIGNAL (clicked ()), label, SLOT (setText )); Here we have tried a signal-slot link The aim of

wild ace slot no signal of the target matches the name QObject::connect: No such slot Steinberg::Steam::AutomationBackgroundItem::drawDataChanged() in class A : QObject { Q_OBJECT public: A(); private slots: void onRefres(); }； 但编译报错，Object::connect: No such slot，难道此类还没有