hello,
i have a probleme in the make of my qt project with C++,there is an error in the QT4 code that i dont have any idea cause is not me who develop this,so how can i do? what is the origine of this error
thx for your help dear QT developers ,i paste you the error :

<code>
-I/usr/include/qt4/QtGui -I/usr/include/qt4/QtGui -I/usr/include/qt4 -I. -Isrc -Iinc -IQtCore -IQtGui -I. -I. -o moc_qbuffer.o moc_qbuffer.cpp
moc_qbuffer.cpp: In member function «virtual int QBuffer::qt_metacall(QMetaObject::Call, int, void**)»:
moc_qbuffer.cpp:65: erreur: invalid use of incomplete type «struct QBufferPrivate»
QtCore/qbuffer.h:57: erreur: forward declaration of «struct QBufferPrivate»
make: *** [moc_qbuffer.o] Erreur 1

</code>