Dears , i need you support as i got the following error : #xm new -f /OVS/Repositories/0004fb0000030000505b685a936d0faf/VirtualMachines/0004fb00000600001dfb6cf4b6258355/vm.cfg Unexpected error: exceptions.ImportError Please report to xen-devel@lists.xensource.com Traceback (most recent call last): File "/usr/sbin/xm", line 7, in ? main.main(sys.argv) File "/usr/lib64/python2.4/site-packages/xen/xm/main.py", line 3983, in main _, rc = _run_cmd(cmd, cmd_name, args) File "/usr/lib64/python2.4/site-packages/xen/xm/main.py", line 4007, in _run_cmd return True, cmd(args) File "<string>", line 1, in <lambda> File "/usr/lib64/python2.4/site-packages/xen/xm/main.py", line 1518, in xm_importcommand cmd = __import__(command, globals(), locals(), ''xen.xm'') File "/usr/lib64/python2.4/site-packages/xen/xm/new.py", line 26, in ? from xen.xm.xenapi_create import * File "/usr/lib64/python2.4/site-packages/xen/xm/xenapi_create.py", line 25, in ? from lxml import etree ImportError: No module named lxml Thank you in advance , Regards, Hossam