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Admin Password wrong, another notebook running

asked 2018-02-08 15:57:26 +0200

j453w588 gravatar image

updated 2018-02-15 17:29:17 +0200

Hello, I have updated to High Sierra and am now having problem logging into my Sage notebook. I've tried reset(notebook=True). Sage said:

Please login to the notebook with the username 'admin' and the above password. Password changed for user 'admin'. Another Sage Notebook server is running, PID 3229. Opening web browser at

How should I fix this? Any help appreciated.

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Update: I've reinstalled SageMath 8.1 and changed directory (i.e. I used to put the Sage folder in Application and now I put in on desktop). Then when I typed in the command notebook(), I got

localhost is currently unable to handle this request. HTTP ERROR 500

And it seems that reinstallation doesn't solve the "another notebook running" problem.

Any help is appreciated!

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answered 2018-02-14 02:45:53 +0200

slelievre gravatar image

Did you reinstall Sage after updating your OS? You should.

With a recent version of SageMath installed, you have a choice of which notebook server to run.

In a terminal,

  • running

    sage -n jupyter

    will launch the Jupyter notebook,

  • running

    sage -n sagenb

    will run the legacy SageNB notebook.

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Thank you for your suggestion. I did reinstall the newest version of SageMath. When I asked the terminal to launch notebook, Chrome said

localhost is currently unavailable to handle this request

Would you happen to know what the issue is this time?

j453w588 gravatar imagej453w588 ( 2018-02-15 15:44:12 +0200 )edit

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Asked: 2018-02-08 15:57:26 +0200

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Last updated: Feb 15 '18