connect: No such slot QObject::replyFinished

no signal of the target matches the name QObject::connect: No such slot Steinberg::Steam::AutomationBackgroundItem::drawDataChanged() in

Hello! I am using a connect function but it will not recognize my variable as a slot even though it is such Here is a part of the code

qq cuan slot Не обнаружен слот, уже несколько часов гуглю, не могу решить проблему QObject::connect: No such slot QMainWindow::open() in

undefined variable $slot warning: In unknown, line 0 warning: QObject::connect: No such slot pqExpressionsWidget::clear() warning: In unknown, line 0 warning