error: invalid use of incomplete type 'struct QMetaEnum'

Hello,
I am new to Qt and C++ and just migrating from C# and .Net framework witch left me with a bitter taste in programming.
I am trying to get familiar with Qt development and came across this problem while trying to get strings from enum values.
I have used this link as a reference:
http://labs.trolltech.com/blogs/2008...g-enum-values/
and used the ENUM_NAME macro defined therea as follow

Code:

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QString strTag = ENUM_NAME(Cat,Cat::CatType,this->m_catType);

---

where Cat is the a class that inherits QObject and has the Q_OBJECT macro inside, and CatType is and enumeration

Code:

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enum CatType{MAIDANEZA,CHARTREUX,PERSIAN};

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parsed with the Q_ENUMS macro.

I get the following error:
cat.cpp:14:error: invalid use of incomplete type 'struct QMetaEnum'
qobjectdefs.h:240: error: forward declaration of 'struct QMetaEnum'

What could be the problem?

can you post your header file, including the includes?

Code:

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#ifndef CAT_H
#define CAT_H
 
#include <QObject>
 
#define ENUM_NAME(o,e,v) (o::staticMetaObject.enumerator(o::staticMetaObject.indexOfEnumerator(#e)).valueToKey((v)))
 
class Cat:public QObject
{
    Q_OBJECT
    Q_ENUMS(CatType)
 
public:
    enum CatType{MAIDANEZA,CHARTREUX,PERSIAN};
 
    explicit Cat(QString name,CatType type,QObject *parent = 0):QObject(parent),Name(name),Kind(type){};
 
    CatType Kind;
    QString Name;
    QString GetTag()
    {
	qDebug()<<QString("THIS IS A CAT TAG");
	QString strTag = this->Name;
        strTag += ENUM_NAME(Cat,Cat::CatType,this->Kind);
	return strTag;
    };
 
};
 
#endif // CAT_H

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hmm, what happens if you add #include <QMetaEnum>?