Qt QObject::connect --> No such slot

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

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

afabola slot 在Qt中使用带参数的自定义槽函数进行父子窗口通信时，遇到了如下错误提示： QObject::connect: No such signal Form::sendListGot(const QString

ethernet slot QObject::connect: No such slot KActionSelector::itemDoubleClicked QObject::connect: No such slot KActionSelector