Unresolved external symbol "public: virtual struct QMetaObject const * __thiscall Parent

Question

I inherited a class from QObject :

class Parent: public QObject
{
    Q_OBJECT
    QObject* cl;

public:
    Parent(QObject *parent=0):QObject(parent) {
            


        

Answer 1

In my case, none of the above worked but it was totally my mistake.

I had overrided virtual functions in .h file (declared them) but had never defined them in .cpp :)