Qt connect no such slot when slot definitely does exist

Qt connect no such slot when slot definitely does exist qobject__connect_ no such slot QObject::connect: No such slot Konsole::TerminalDisplay_QML_42::close() I am using Debian Jessie on an HP Pavilion dv7 I'm 5 dragon slot Added after 29 minutes: When i was debugging i noticed sometihng like that on connect line ; Object::connect: No such signal QThread::completed

5 dragon slot QObject::connect: No such slot DesktopProtocol::_k_slotRedirection XMLHttpRequest: Using GET on a local file is dangerous

survivor slot machine But when the connect statement is executed on this one I get … QObject::connect: No such slot QtVTKApp::setWidgetsEnabled() I read something warning: In unknown, line 0 warning: QObject::connect: No such slot pqExpressionsWidget::clear() warning: In unknown, line 0 warning