Connecting to existing remote server. Can't find Python Kernel

Environment data

• VS Code version: 1.60.0
• Jupyter Extension version: v2021.8.2031190714
• Python Extension version: v2021.9.1191016588
• OS: Catalina 10.15.7
• Python and/or Anaconda version: 3.9.6
• Type of virtual environment used: venv
• Jupyter server running: Remote

Expected behaviour

Find and attach to kernel

Actual behaviour

Prompts me to Select kernel for ‘test.ipynb’

Steps to reproduce:

1. Run jupyter-lab --no-browser
2. CTRL+SHIFT+P
3. “Jupyter: Specify local or remote Jupyter Server for connections”
4. Click “Existing”
5. Paste localhost URL
6. Try running cell

Logs

jupyter-lab --no-browser [I 2021-09-06 16:53:36.870 ServerApp] jupyterlab | extension was successfully linked. [I 2021-09-06 16:53:37.082 ServerApp] nbclassic | extension was successfully linked. [I 2021-09-06 16:53:37.136 ServerApp] nbclassic | extension was successfully loaded. [I 2021-09-06 16:53:37.138 LabApp] JupyterLab extension loaded from /usr/local/lib/python3.9/site-packages/jupyterlab [I 2021-09-06 16:53:37.138 LabApp] JupyterLab application directory is /usr/local/share/jupyter/lab [I 2021-09-06 16:53:37.143 ServerApp] jupyterlab | extension was successfully loaded. [I 2021-09-06 16:53:37.144 ServerApp] Serving notebooks from local directory: /Users/ischan/workspace/lb-requests [I 2021-09-06 16:53:37.144 ServerApp] Jupyter Server 1.9.0 is running at: [I 2021-09-06 16:53:37.144 ServerApp] http://localhost:8888/lab?token=4d0134d6bd27db80a8b41e48148e4f7f0492153ca1a2b93b [I 2021-09-06 16:53:37.144 ServerApp] or http://127.0.0.1:8888/lab?token=4d0134d6bd27db80a8b41e48148e4f7f0492153ca1a2b93b [I 2021-09-06 16:53:37.144 ServerApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation). [C 2021-09-06 16:53:37.150 ServerApp]

To access the server, open this file in a browser:
    file:///Users/ischan/Library/Jupyter/runtime/jpserver-1687-open.html
Or copy and paste one of these URLs:
    http://localhost:8888/lab?token=4d0134d6bd27db80a8b41e48148e4f7f0492153ca1a2b93b
 or http://127.0.0.1:8888/lab?token=4d0134d6bd27db80a8b41e48148e4f7f0492153ca1a2b93b

[I 2021-09-06 16:53:53.664 ServerApp] Creating new notebook in / [I 2021-09-06 16:53:53.719 ServerApp] Kernel started: f572c4b6-c7c6-43a7-ad1a-71edc479596d [W 2021-09-06 16:53:53.756 ServerApp] delete /default-01fa697e-ca16-4281-a1b0-88af3ed71d9b.ipynb [I 2021-09-06 16:53:54.361 ServerApp] Kernel shutdown: f572c4b6-c7c6-43a7-ad1a-71edc479596d

[IvanAntipov]

I have the same problem. In my case, the list of available kernels is completely empty. I can’t connect to an existing kernel, nor create a new one. I tested on different Jupyter servers, so the problem is on VS Code side. Problem several weeks ago everything worked well.

[isaacdchan]

Yes now it doesn’t prompt. me to select a kernel the code cell just runs. I’ll close the issue and reopen if it resurfaces.