更新后 Google Colab 无法连接到本地运行时

Question

I recently updated jupter_over_ws to version 0.0.7 and now Google Colab refuses to connect my local runtime.

I have tried multiple iterations of launching the localhost in chrome, running with --no-browser etc and keep receiving a 'Forbidden' 403.

The last iteration I got to in an attempt to connect to the notebook was:

jupyter notebook --NotebookApp.allow_origin='https://colab.research.google.com' --NotebookApp.port_retries=0 --notebook-dir="" --no-browser --allow-root --NotebookApp.token='' --NotebookApp.disable_check_xsrf=True --port=8888

Any help much appreciated

Answer 1

Colab recently updated it's local runtime connection instructions .

In particular, you'll need to provide the URL printed in the console when starting the local runtime.

Clicking the "More Details" button in the local connection dialog will provide additional instructions.

Answer 2

After update, you need first upgrade jupyter_http_over_ws:

pip install --upgrade jupyter_http_over_ws

And second, everytime you start the server with this code:

jupyter notebook --NotebookApp.allow_origin='https://colab.research.google.com' --port=8888 --NotebookApp.port_retries=0

It will show a new token in Anaconda's prompt, you need to copy.

When you click in Connect to local runtime in Colab, a box will ask for the token, then paste there.

Answer 3

If you use Anaconda, you can follow the instructions:

1. Open cmd.exe as Administrator
2. Run pip install --upgrade jupyter_http_over_ws>=0.0.7 && jupyter serverextension enable --py jupyter_http_over_ws
3. Run jupyter notebook --NotebookApp.allow_origin='https://colab.research.google.com' --port=8892 --NotebookApp.port_retries=0
4. Copy the URL from the command prompt printed console ex: http://localhost:8892/?token=fecaca2501d00f89971ab8fb4a5add3ff682ade7e63f7265
5. Paste the URL including token in Google Colab connection settings as Backend URL

Answer 4

I solved this by removing the password from the jupyter .config file, then copy and pasting the token url as you have outlined in the answers above, and as outlined in the official colab documentation:

https://research.google.com/colaboratory/local-runtimes.html