AttributeError: module 'os' has no attribute 'listxattr'
  File "gns3/main_window.py", line 1239, in startupLoading
    if not servers.localServerAutoStart():
  File "gns3/servers.py", line 426, in localServerAutoStart
    if not self.initLocalServer():
  File "gns3/servers.py", line 440, in initLocalServer
    self._checkUbridgePermissions()
  File "gns3/servers.py", line 159, in _checkUbridgePermissions
    if "security.capability" in os.listxattr(path):

AttributeError: module 'os' has no attribute 'listxattr'