Jupyter Notebook window won't open after Catalina upgrade

General
1

Hi there,
I was happily using Jupyter Notebook via Anaconda Navigator until upgrading to MacOS Catalina late last year. Since then I have tried…

  • reinstalling Navigator via the pkg and command line
  • setting up a conda env

…but to no avail, when I try to run Jupyter Notebook I get a window opening in Chrome (or Firefox or Safari) stuck at “waiting for localhost”. The same issue if I use the localhost URL directly.

Any suggestions gratefully received!
Thanks,
Simon

2

It sounds like the notebook server is not starting up properly. Try running the command jupyter notebook from command line in Terminal.app - what do you see? If you see a message like:

The Jupyter Notebook is running at:
http://localhost:8888/

then try connecting to that URL. You may need to do this from within your conda env.

3

Hi @scbarton and many thanks for the response.

Attached is a screenshot of the Terminal window…

Screenshot 2020-01-15 at 21.20.05
Screenshot 2020-01-15 at 21.20.051858×626 112 KB

…unfortunately if I copy and paste the highlighted link (http://localhost…) I get the same outcome ie a tab in Chrome with a little loading wheel of doom and a message saying “Waiting for localhost…” at the bottom of a blank window.

4

Hello!

Were you able to solve these issues?
I’m experiencing exactly the same and running out of ideas. My environment is:
macOS Catalina 10.15.3
Anaconda 2019.10
jupyter 1.0.0

And tried to access http://localhost:8888/
in Chrome, Chrome Incognito and Safari without any success.

Any direction would be greatly appreciated!

UPDATE after reinstalling I am able to access via 127.0.0.1:8888/lab
localhost:8888/ is still not resolving, but that’s a different issue.

1 Like
5

I’m running into this same issue. Unable to access localhost, but by typing in the local IP, I can access my jupyter notebooks. Has anyone else run into this issue?

Exact same setup and versions as @Azucena_Coronel above.

1 Like
6

Hey the solution to all the issue is explained here

7

Open: vim .jupyter/jupyter_notebook_config.py

find > c.NotebookApp.ip = ‘localhost’
Change > c.NotebookApp.ip = ‘127.0.0.1’

Remove the # sign at the beginning, though.

8

Just upgraded to Big Sur, and it stopped working, the solution was easier than I thought:

xcode - Why am I getting an “invalid active developer path” when attempting to use Git after upgrading macOS? - Ask Different <- look 2625

If you are lazy open terminal and:

xcode-select --install
1 Like