creating bundle stream

when i execute below command one im getting following error

lava-dashboard-tool make-stream --dashboard-url=https://${USER}@vaidation.linaro.org/lava-server/RPC2/ /private/personal/vinayhunachyal/ltp

Traceback (most recent call last):
  File "/usr/local/bin/lava-dashboard-tool", line 9, in <module>
    load_entry_point('lava-dashboard-tool==0.8.dev159', 'console_scripts', 'lava-dashboard-tool')()
  File "/home/vinay/lava/lava-dashboard-tool/lava_dashboard_tool/main.py", line 37, in main
    run_with_dispatcher_class(LaunchControlDispatcher)
  File "/usr/local/lib/python2.7/dist-packages/lava_tool/dispatcher.py", line 45, in run_with_dispatcher_class
    raise cls.run()
  File "/usr/local/lib/python2.7/dist-packages/lava/tool/dispatcher.py", line 147, in run
    raise SystemExit(cls().dispatch(args))
  File "/usr/local/lib/python2.7/dist-packages/lava/tool/dispatcher.py", line 137, in dispatch
    return command.invoke()
  File "/home/vinay/lava/lava-dashboard-tool/lava_dashboard_tool/commands.py", line 442, in invoke
    self.use_non_legacy_api_if_possible()
  File "/home/vinay/lava/lava-dashboard-tool/lava_dashboard_tool/commands.py", line 391, in use_non_legacy_api_if_possible
    if "dashboard.version" in getattr(self, name).system.listMethods():
  File "/usr/lib/python2.7/xmlrpclib.py", line 1224, in __call__
    return self.__send(self.__name, args)
  File "/usr/lib/python2.7/xmlrpclib.py", line 1578, in __request
    verbose=self.__verbose
  File "/usr/local/lib/python2.7/dist-packages/lava_tool/authtoken.py", line 82, in request
    token = self.auth_backend.get_token_for_endpoint(user, url)
  File "/usr/local/lib/python2.7/dist-packages/lava_tool/authtoken.py", line 47, in get_token_for_endpoint
    "lava-tool-%s" % endpoint_url, username)
  File "/usr/lib/python2.7/dist-packages/keyring/core.py", line 34, in get_password
    return _keyring_backend.get_password(service_name, username)
  File "/usr/lib/python2.7/dist-packages/keyring/backend.py", line 154, in get_password
    items = gnomekeyring.find_network_password_sync(username, service)
gnomekeyring.IOError