Hi guys sorry a lot for this question but at the moment i cant use xmpp ; i think because in this version i need include some path or something, i dont know.
I share with you picture about this error:
https://i.imgsafe.org/0b4d860cd6.png

Its like the ide doesnt know the path or something like that (about this error
C:\Users\moh\cliente\ventanaescritorio.h:27: error: qxmpp/QXmppClient.h: No such file or directory
#include <qxmpp/QXmppClient.h>
^

i included this LIB but in this version seems not work.
LIBS += -lxmpp_d0

i compiled xmpp with qt 5.2 not qt 5.7 or other i am using this version now thx a lot for your help and sorry again !! a lot !!