I installed the Ajenti on Ubuntu 14.04 x64 and when I run sudo ajenti-panel -v — I get error:

Me too on Debian 8; But while ajento was on in confi.json I changed port to 10000 saved run ajenti-panel-v and everything was fine. Then restarted after ajenti-panel -v same error. Again changed in config.json port back to 8000 saved run ajenti-panel-v ant its binding the address and I get the green light, but when I try to connect to web panel, nothing happens, here is what traceback I get:

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/gevent/greenlet.py", line 327, in run
    result = self._run(*self.args, **self.kwargs)
  File "/usr/lib/python2.7/dist-packages/gevent/server.py", line 102, in wrap_soc                                                                                       ket_and_handle
    ssl_socket = self.wrap_socket(client_socket, **self.ssl_args)
  File "/usr/lib/python2.7/dist-packages/gevent/ssl.py", line 382, in wrap_socket
    ciphers=ciphers)
  File "/usr/lib/python2.7/dist-packages/gevent/ssl.py", line 84, in __init__
    ctx = SSLContext(ssl_version)
NameError: global name 'SSLContext' is not defined
>( failed with                                                                                        NameError'

managed to launch ajenti by upgradint gevent.