Object::connect: No such slot mgccis::web::SuperClassWebservice::onReadyRead() in ServiceInterface\SubClassWebservice.cpp:37
The connect code in the SubClassWebservice looked like this:
connect(httpPost_parameterData_.data(), SIGNAL(readyRead()), this, SLOT(onReadyRead()));
There was a slot in the subClassWebservice, took a google search session to find out the real problem, found this on Stackoverflow:
I've forgot to add the Q_OBJECT in the class declaration of the sub class.