Authentication failure while installing falcon service through ambari

2015-03-23 18:47:17,631 - Error while executing command 'service_check':
Traceback (most recent call last):
File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py", line 111, in execute
method(env)
File "/var/lib/ambari-agent/cache/stacks/HDP/2.1/services/FALCON/package/scripts/service_check.py", line 36, in service_check
try_sleep = 20
File "/usr/lib/python2.6/site-packages/resource_management/core/base.py", line 148, in _init_
self.env.run()
File "/usr/lib/python2.6/site-packages/resource_management/core/environment.py", line 149, in run
self.run_action(resource, action)
File "/usr/lib/python2.6/site-packages/resource_management/core/environment.py", line 115, in run_action
provider_action()
File "/usr/lib/python2.6/site-packages/resource_management/core/providers/system.py", line 239, in action_run
raise ex
Fail: Execution of '/usr/lib/falcon/bin/falcon admin -version' returned 255. Error: Could not authenticate, Authentication failed, status: 404, message: Not Found