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Vscode Select Kernel Hangs, Environment OS: Windows 11 (or your version) VS Code Version: [Check: Help → About] Jupyter Extension Version: [Check in Extensions panel] Python Extension Version: [Check in Extensions Mar 2, 2023 · I try to clear the kernel MRU, select another kernel, enter the jupyter URL, etc, etc, nothing appears to work. The jupyter notebook extension in vscode as well as the jupyter notebook in the browser get stuck in kernel connecting state when a cell is executed. 0 Archived post. SSH host-specific settings Apr 10, 2026 · April update for partners covering new AI Business Solutions incentives, Copilot offers, skilling resources, events, and go-to-market updates. Mar 9, 2012 · I can still select an interpreter in VS (Python 3. Currently I want to try out a new Extension called “Jupyter”. 4 Vscode: 1. py files with #%% markers) What happened? I cannot execute any code cell in my . Please provide a mechanism to force kill it, even providing the pid would be acceptable! I have the Python extension and Jupyter extension installed, but when I click "Select Kernel" it's stuck on a loading bar. The application appears to hang at this stage and is… Jul 27, 2021 · It used to work, but now the extension cannot find any kernel (should be an option on the far right) : When I try to start the first cell it proposes me to select a kernel, but there is none : After looking into the log it seems that I get an error 503. json and start debugging (F5), the application will start on remote host and attach the debugger to it. ipynb file, in vscode, since I cannot select a kernel. Python: 3. Mar 25, 2022 · When you select one of the kernels with the “Julia VS Code extension” label, then all the code execution for the notebook is handled by the Julia VS Code extension. It however works well whe For example, if you select a launch configuration in launch. The "Detecting kernels" message appears and never completes. jl installed, or Jupyter or anything else, just Julia and the extension should be enough. Oct 10, 2024 · Dear Manjaro Community, I hope there is someone here who can help me with my problem because it is rather specific… I am working with python and using vscode on my Manjaro Linux laptop. 64. exe, in my case) but when I try to run the file the next message appears: Type to choose a kernel source And the thing is no available kernel appears. json. Jun 27, 2023 · A "Select Kernel" quick pick shows and spins forever. Oct 12, 2025 · I recently installed the latest version of Visual Studio Code. --> I expected this to connect and allow me to run the notebook! Close vscode Next time I open VS Code, it hangs with a blank screen for a while and then my it opens with my notebook showing as a blank page and throws the error: Feb 7, 2026 · The kernel gets stuck too often where I can't interrupt or restart. See the debugging documentation for details on configuring VS Code's debugging features in . But when I click on Nov 6, 2025 · VS Code's Jupyter extension hangs indefinitely when trying to detect/select kernels in notebooks. 0. Nov 6, 2025 · Bug Description VS Code's Jupyter extension hangs indefinitely when trying to detect/select kernels in notebooks. I wonder that what's going on and how to fix it. 12 ('base') ~\anaconda3\python. How do I run my notebook? Jan 21, 2025 · Applies To Notebooks (. ipynb”-File to run it, VS-Code wants me to select a Kernel with the Button in the upper right corner. A possibly related issue: #183067 Mar 13, 2026 · Resolve the persistent VS Code Jupyter extension hang where notebooks stay on Detecting Kernels by fixing environment discovery and extension cache. When I have my “. Oct 12, 2025 · I recently installed the latest version of Visual Studio Code. New comments cannot be posted and votes cannot be cast. Mar 13, 2026 · Resolve the persistent VS Code Jupyter extension hang where notebooks stay on Detecting Kernels by fixing environment discovery and extension cache. Oct 12, 2025 · It seems to be an issue with the version 7. vscode/launch. Stuck on "Connecting to kernel" I'm working with vscode to read jupyter notebook file. 0 of the ipykernel python package. ipynb files) Interactive Window and/or Cell Scripts (. 9. The installation completed successfully, but upon launching the application, it gets stuck on the message "Detecting Kernel". The application appears to hang at this stage and is… Dec 20, 2024 · Actual Behavior No kernels are being detected Cannot run any notebook cells Kernel picker shows no available kernels Question How can I properly configure VS Code to detect and use Python kernels for Jupyter notebooks on a fresh Arch Linux installation, considering the system package management restrictions?. The installation completed successfully, but upon launching the application, it gets stuck on the message "Detecting Kernel". The Descriptions of kernel selection options and tutorials on managing different types of kernels when working with Jupyter Notebooks in Visual Studio Code. I just hangs indefinitely!! The only way is to restart VSCode, this can happen non-stop causing this plugin to be worthless. In particular, you don’t need to have IJulia. Today I found out that when I tried to run the code block it stucked on the "connecting to kernel" stage. 7. I have opened the Jupyter Notebook in my Google Chrome via the Anaconda Navigator and found no problem with that. 2rxf0ms, jeqp0e2, sbrj, ibjr, bim6ch, 2pjr, iu81vs, qf98w, secqcorl, cd,