Qt connect no such slot when slot definitely does exist

qobject__connect_ no such slot   Dan royal lotus slot

emit aSignal(); Page 37 Making the connection QObject::connect( src, SIGNAL, dest, SLOT ); function name> ( arg type>

QObject::connect: No such slot QGroupBox::redundancyChangeOutput() QObject::connect: QObject QObject::connect: No such slot as RxMock::rxsignal() If I remove Q_OBJECT in class MockRx, I get: No such slot as QWidget::rxsignal() I also tried to

enchanted garden slot machine connect to D-Bus server: NoServer No such > file or directory > Error: Can not contact kdeinit4 no signal of the target matches the name QObject::connect: No such slot Steinberg::Steam::AutomationBackgroundItem::drawDataChanged() in