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Monday, 7 August 2017

Jupyterhub is not running on ubuntu 16.04

$ jupyterhub
/home/ubuntu/jupyterhub_config.py:6: UserWarning: IPython.utils.localinterfaces has moved to jupyter_client.localinterfaces
  from IPython.utils.localinterfaces import public_ips
[I 2017-08-07 18:36:18.545 JupyterHub app:724] Loading cookie_secret from /home/ubuntu/jupyterhub_cookie_secret
[W 2017-08-07 18:36:18.576 JupyterHub app:365] 
    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 2017-08-07 18:36:18.579 JupyterHub app:864] No admin users, admin interface will be unavailable.
[W 2017-08-07 18:36:18.580 JupyterHub app:865] Add any administrative users to `c.Authenticator.admin_users` in config.
[I 2017-08-07 18:36:18.580 JupyterHub app:892] Not using whitelist. Any authenticated user will be allowed.
[I 2017-08-07 18:36:18.593 JupyterHub app:1453] Hub API listening on http://172.31.28.236:8081/hub/
[W 2017-08-07 18:36:18.596 JupyterHub app:1174] Running JupyterHub without SSL.  I hope there is SSL termination happening somewhere else...
[I 2017-08-07 18:36:18.596 JupyterHub app:1176] Starting proxy @ http://*:8000/
/usr/bin/env: ‘node’: No such file or directory
[C 2017-08-07 18:36:19.605 JupyterHub app:1459] Failed to start proxy
    Traceback (most recent call last):
      File "/home/ubuntu/miniconda3/lib/python3.6/site-packages/jupyterhub/app.py", line 1457, in start
        yield self.start_proxy()
      File "/home/ubuntu/miniconda3/lib/python3.6/site-packages/jupyterhub/app.py", line 1197, in start_proxy
        _check()
      File "/home/ubuntu/miniconda3/lib/python3.6/site-packages/jupyterhub/app.py", line 1193, in _check
        raise e

    RuntimeError: Proxy failed to start with exit code 127


solution:
sudo apt-get install npm nodejs-legacy

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