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

Visual Studio 2017.

I've added file to already set up Qt project and got this error. How I fixed it:

Right click on the header in Solution Explorer Properties... -> Configuration Properties -> General -> Item Type Change from C/C++ Header to Qt Meta-Object Compiler (moc)

voila :)