Salt Error

root@host:/tmp# salt-call test.ping
[WARNING ] Attempted to authenticate with master <URI REDACTED> and failed
[ERROR   ] An un-handled exception was caught by salt's global exception handler:
AttributeError: 'SMinion' object has no attribute 'functions'
Traceback (most recent call last):
  File "/usr/bin/salt-call", line 11, in <module>
    salt_call()
  File "/usr/lib/python2.7/dist-packages/salt/scripts.py", line 77, in salt_call
    client.run()
  File "/usr/lib/python2.7/dist-packages/salt/cli/__init__.py", line 303, in run
    caller.run()
  File "/usr/lib/python2.7/dist-packages/salt/cli/caller.py", line 135, in run
    ret = self.call()
  File "/usr/lib/python2.7/dist-packages/salt/cli/caller.py", line 60, in call
    if fun not in self.minion.functions:
AttributeError: 'SMinion' object has no attribute 'functions'
Traceback (most recent call last):
  File "/usr/bin/salt-call", line 11, in <module>
    salt_call()
  File "/usr/lib/python2.7/dist-packages/salt/scripts.py", line 77, in salt_call
    client.run()
  File "/usr/lib/python2.7/dist-packages/salt/cli/__init__.py", line 303, in run
    caller.run()
  File "/usr/lib/python2.7/dist-packages/salt/cli/caller.py", line 135, in run
    ret = self.call()
  File "/usr/lib/python2.7/dist-packages/salt/cli/caller.py", line 60, in call
    if fun not in self.minion.functions:
AttributeError: 'SMinion' object has no attribute 'functions'