Cannot spawn a server for new users

im working on getting tornado installed I realize thats an issue, but anything else?

where should the /notebooks directory be?

any update?. .

Please ask your question in a new thread (instead of using this thread) and explain your personal setup in detail. This way anybody could help you best. JupyterHubs are highly configurable so that your question cannot be answered without any additional information. Thanks!

pooof! I just solved this crazy problem. I used to login with root user and even installed the anaconda using root user in /root directory. but when I used another VM, created another user name condauser, installed the anaconda with that user, every thing works fine.
remind that you should run the jupyterhub with root user but use that recently created user to login.