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

I know that this is a very old question, but it seems to be still interesting (I've been here at least 4 or 5 times in the last months) and seems like I found another reason for which is possible to get this error.

In my case in the header file I wrongly typed:

#include "MyClass.h""

Only after inspecting the whole output I found out that at that line the compiler was emitting a warning.

Now that I removed the additional quotation mark my QObject compiles perfectly!