[libvirt-users] connect to esx: Could not find HostSystem with name '(null)'

Hi all, I am trying to connect to esx vi libvirt 0.10.2. virsh # connect esx://hostname?no_verify=1&auto_answer=1 error: Failed to connect to the hypervisor error: internal error Could not find HostSystem with name '(null)' could you give me a hint, what could be a reason for that problem in a debug log of libvirt I see: 14447: debug : virAuthGetConfigFilePath:77 : Checking for readability of '/root/.libvirt/auth.conf' 14447: debug : virAuthGetConfigFilePath:86 : Checking for readability of '/etc/libvirt/auth.conf' 14447: debug : virAuthGetConfigFilePath:95 : Using auth file '(null)' 14447: error : esxVI_LookupManagedObjectHelper:4854 : internal error Could not find HostSystem with name '(null)' 14447: debug : do_open:1180 : driver 1 ESX returned ERROR Regards Dimitri