hello,
another error in QT4 that i cant find solution,i used to re-install but no way that's the error:

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



thx for Help.