mark@Xubuntu-PC:~/Documents/lanoverip/serveur$ lrelease serveur.pro
lrelease: could not find a Qt installation of ''
mark@Xubuntu-PC:~/Documents/lanoverip/serveur$ make
make: *** No targets specified and no makefile found. Stop.
mark@Xubuntu-PC:~/Documents/lanoverip/serveur$ qmake
qmake: could not find a Qt installation of ''
mark@Xubuntu-PC:~/Documents/lanoverip/serveur$ cd ..
mark@Xubuntu-PC:~/Documents/lanoverip$ lrelease serveur.pro
lrelease: could not find a Qt installation of ''
mark@Xubuntu-PC:~/Documents/lanoverip$ qmake
qmake: could not find a Qt installation of ''