Qt 信号和槽异常： QObject::connect: No Such slot baseClassName

Qt QObject::connect: No such signal — Development qobject__connect_ no such slot emit aSignal(); Page 37 Making the connection QObject::connect( src, SIGNAL, dest, SLOT ); function name> ( arg type> royal spin slot QObject::connect: No such slot MLSDialog::activateMenu QObject::connect:

slot demo saldo banyak However, I get an error QObject::connect: No such slot QWidget::onClick() My code is as follows #include iostream> #include