title: Jupyterhub not running on Ubuntu 14.04
body: <p>Been stuck in this issue for the past two days.</p>
  
  <p>Followed the github link regarding this issue. Didn't worked.
  <a href="https://github.com/jupyter/jupyterhub/issues/237" rel="nofollow">https://github.com/jupyter/jupyterhub/issues/237</a></p>
  
  <pre><code>saimmehmood@saimmehmood-VirtualBox:~$ sudo jupyterhub
  [sudo] password for saimmehmood: 
  [I 2016-03-22 02:18:54.577 JupyterHub app:558] Loading cookie_secret from /home/saimmehmood/jupyterhub_cookie_secret
  [W 2016-03-22 02:18:54.865 JupyterHub app:292] 
  Generating CONFIGPROXY_AUTH_TOKEN. Restarting the Hub will require restarting the proxy.
  Set CONFIGPROXY_AUTH_TOKEN env or JupyterHub.proxy_auth_token config to avoid this message.
  
  [W 2016-03-22 02:18:54.893 JupyterHub app:685] No admin users, admin interface will be unavailable.
  [W 2016-03-22 02:18:54.900 JupyterHub app:686] Add any administrative users to `c.Authenticator.admin_users` in config.
  [I 2016-03-22 02:18:54.906 JupyterHub app:712] Not using whitelist. Any authenticated user will be allowed.
  [I 2016-03-22 02:18:55.016 JupyterHub app:1113] Hub API listening on http://127.0.0.1:8081/hub/
  [E 2016-03-22 02:18:55.055 JupyterHub app:855] Refusing to run JuptyterHub without SSL. If you are terminating SSL in another layer, pass --no-ssl to tell JupyterHub to allow the proxy to listen on HTTP.
  
  
  saimmehmood@saimmehmood-VirtualBox:~$ sudo jupyterhub --no-ssl
  [I 2016-03-22 02:19:12.896 JupyterHub app:558] Loading cookie_secret from /home/saimmehmood/jupyterhub_cookie_secret
  [W 2016-03-22 02:19:13.046 JupyterHub app:292] 
  Generating CONFIGPROXY_AUTH_TOKEN. Restarting the Hub will require restarting the proxy.
  Set CONFIGPROXY_AUTH_TOKEN env or JupyterHub.proxy_auth_token config to avoid this message.
  
  [W 2016-03-22 02:19:13.079 JupyterHub app:685] No admin users, admin interface will be unavailable.
  [W 2016-03-22 02:19:13.080 JupyterHub app:686] Add any administrative users to `c.Authenticator.admin_users` in config.
  [I 2016-03-22 02:19:13.080 JupyterHub app:712] Not using whitelist. Any authenticated user will be allowed.
  [I 2016-03-22 02:19:13.149 JupyterHub app:1113] Hub API listening on http://127.0.0.1:8081/hub/
  [W 2016-03-22 02:19:13.174 JupyterHub app:851] Running JupyterHub without SSL. There better be SSL termination happening somewhere else...
  [I 2016-03-22 02:19:13.174 JupyterHub app:860] Starting proxy @ http://*:8000/
  /usr/bin/env: node: No such file or directory
  [C 2016-03-22 02:19:14.297 JupyterHub app:1119] Failed to start proxy
  Traceback (most recent call last):
    File "/usr/local/lib/python3.4/dist-packages/jupyterhub/app.py", line 1117, in start
      yield self.start_proxy()
    File "/usr/local/lib/python3.4/dist-packages/jupyterhub/app.py", line 881, in start_proxy
      _check()
    File "/usr/local/lib/python3.4/dist-packages/jupyterhub/app.py", line 877, in _check
      raise e
  RuntimeError: Proxy failed to start with exit code 127
  </code></pre>
  
  <p>Kindly let me know any solution.</p>
  
  <p>Thank you!</p>