Unable to start kernel due to a timeout waiting for the ports to get used. Jun 19, 2023 · Hi, here I am just trying to use VS code using the remote-ssh extension. . Steps to reproduce: [NOTE: Self-contained, minimal reproducing code samples are extremely helpful and will expedite addressing your issue] (Ran using integrated cmd in VS Code) Install uv Install python via uv uv python install 3. Unable to start Kernel '. #12015 Closed Oct 16, 2023 · I get the message Failed to connect raw kernel session: Error: Unable to start Kernel '. Nov 14, 2022 · Unable to start Kernel 'xxx (Python 3. 3)' due to a timeout waiting for the ports to get used. Apr 2, 2025 · The kernel fails to start due to a timeout waiting for the ports to get used when attempting to run a cell. 16. py can run in vscode jupyter-notebook can run in browser win+R (enter) -> cmd (enter) -> jupyter-notebook (enter) Logs Aug 8, 2023 · In the logs, I'm seeing this error: 'Error: Unable to start Kernel 'Python 3. 11. 6 Virtual environment Venv May 17, 2023 · From marketplace: It does not work in vscode. Python Extension Version: 2022. View Jupyter [log](command:jupyter. Environment VS Code 1. 1002791758. venv2 (Python 3. 0. It's been a day or two. What can I do? Oct 7, 2022 · Failed to start the Kernel. Python 3. Unable to start Kernel 'base (Python 3. I am connecting to a remote server via ssh throug Feb 8, 2023 · Failed to start the kernel - Unable to start Kernel 'Python 3' due to connection timeout I've tried reinstalling Visual Studio Code and also reinstalled jupyter but nothing has worked. The adequate environment is selected in VSCode. ' Possibly related comment: To fix "kernel issue" you should install previous downgrade your pyth Jun 25, 2023 · It eventually times out, and I receive the error: Unable to start Kernel 'base (Python 3. #12015 Closed Feb 8, 2023 · Failed to start the kernel - Unable to start Kernel 'Python 3' due to connection timeout I've tried reinstalling Visual Studio Code and also reinstalled jupyter but nothing has worked. venv (Python 3. Unable to start Kernel due to a timeout waiting for the ports to get used. Feb 1, 2024 · If that doesn’t work the other setting I’d try and add to the before. ``` Oct 31, 2023 · Memory-Related issues: Memory-related issues in the kernel occur due to many reasons. Here’s what I see when I try to start the notebook: ``` Failed to start the Kernel. Oct 2, 2023 · Failed to start the Kernel. 3)' due to connection timeout. 5)' due to connection timeout. I have attached the Jupyter log below if necessary. kernel_info_timeout : Float which defaults to 60 seconds and is the timeout for giving up on a kernel (in seconds). 6)' due to a timeout waiting for the ports to get used. 12. 10)' due to a connection timeout. py files with #%% markers) What happened? The kernel will not start when running a cell in a Jupyter notebook. The kernel is not starting. Unable to start Kernel 'mlaids (Python 3. 7. #13283 github-actions locked as resolved and limited conversation to collaborators on Sep 2, 2023 Apr 6, 2023 · Failed to start the Kernel. 10. 9)' due to a timeout waiting for the ports to get used. View Jupyter log for further details. May 24, 2022 · Applies To Notebooks (. 6)' due to connection timeout. sh like above would be the MappingKernelManager. Unable to start Kernel 'fabric-synapse-runtime-1-1 (Python 3. Oct 7, 2022 · Failed to start the Kernel. They can be Memory (OOM) errors which arise when the kernel runs out of available memory while executing code, performance degradation in which a notebook occupies a significant amount of memory, memory leaks in the notebook, or the use of a large number of In the logs, I'm seeing this error: 'Error: Unable to start Kernel 'Python 3. Tried running with and without VPN but it also did not help. ) Nov 14, 2022 · Unable to start Kernel 'xxx (Python 3. 9 Mar 10, 2024 · I've been trying to run a Jupyter notebook in Visual Studio Code, but I keep running into a kernel connection timeout issue. Steps to reproduce: any code just can not run example note: file. Can't find solution. Apr 27, 2025 · Afterwards I was not able to run the notebook at all since I always get this error: Failed to start the Kernel. ipynb files) Interactive Window and/or Cell Scripts (. 6 Virtual environment Venv Apr 7, 2022 · sanskaromar mentioned this on Apr 6, 2023 Unable to start Kernel due to connection timeout. viewOutput) for further details. 72. When I am running a jupyter-notebook. 9. 0 Mac Jupyter Extension Version: 2022. ' Tried reinstalling VSCode, extensions, Python interpreter and packages like ipykernel but it did not fix the issue. 4' due to a timeout waiting for the ports to get used. 'Unable to start Kernel 'base (Python 3. szkhrsy jrdxe cxxa kktg qxjgaw ljycoeg tnn uzbiihzk rom itynx