AttributeError: 'module' object has no attribute 'hid_init'

[ajaiau0]

Im using the ubundu 16.04 and Emotive epoc+ .im used python 2.7 to run the program but i got this error,
Initializing Emokit...
Initializing Reader Thread...
Exception in thread Thread-2:
Traceback (most recent call last):
File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner
self.run()
File "/usr/lib/python2.7/threading.py", line 754, in run
self.__target(*self.__args, **self.__kwargs)
File "/usr/local/lib/python2.7/dist-packages/emokit/emotiv.py", line 229, in run
self.initialize_reader()
File "/usr/local/lib/python2.7/dist-packages/emokit/emotiv.py", line 133, in initialize_reader
self.reader = EmotivReader()
File "/usr/local/lib/python2.7/dist-packages/emokit/reader.py", line 35, in init
hidapi.hid_init()
AttributeError: 'module' object has no attribute 'hid_init'

im connected and pair the emotive epoc+ using usb ,can you suggest any solution.
if you see this please replay.