erreur au lancement Salome

omar@HP-Pavilion-dv6-Notebook-PC:~$ runSalomeMeca

CHECK /home/omar
Searching for free port for the SALOME Naming Service: 2810 - Ok
Configure parser: Warning : could not find configuration file /opt/SALOME-MECA-2008.1-GPL/SALOME/SALOME3/V3_2_9NoDebug/GUI_V3_2_9NoDebug/share/salome/resources/SalomeApp.xml
Configure parser: Warning : could not find user configuration file
Searching for a free port for naming service: 2810 - OK
Lancement du Naming Service runNS.sh > /tmp/logs/omar/salomeNS.log 2>&1
Searching Naming Service + found in 0.1 seconds
Searching /Containers/HP-Pavilion-dv6-Notebook-PC/FactoryServerPy in Naming Service +SALOME_Session_Server: error while loading shared libraries: libXrandr.so.2: cannot open shared object file: No such file or directory
SALOME_ContainerManagerServer: error while loading shared libraries: libXrandr.so.2: cannot open shared object file: No such file or directory
+ found in 1.0 seconds
Searching /Kernel/Session in Naming Service +Traceback (most recent call last):
File "/opt/SALOME-MECA-2008.1-GPL/SALOME/SALOME3/V3_2_9NoDebug/KERNEL_V3_2_9NoDebug/bin/salome/runSalome.py", line 806, in useSalome
clt = startSalome(args, modules_list, modules_root_dir)
File "/opt/SALOME-MECA-2008.1-GPL/SALOME/SALOME3/V3_2_9NoDebug/KERNEL_V3_2_9NoDebug/bin/salome/runSalome.py", line 756, in startSalome
session=clt.waitNSPID("/Kernel/Session",mySessionServ.PID,SALOME.Session)
File "/opt/SALOME-MECA-2008.1-GPL/SALOME/SALOME3/V3_2_9NoDebug/KERNEL_V3_2_9NoDebug/bin/salome/orbmodule.py", line 173, in waitNSPID
raise "Impossible de trouver %s" % theName
Impossible de trouver /Kernel/Session


--- erreur au lancement Salome ---
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aide moi je veut une solution merci