bound doStepSettingsValidation Failed: Device not found: Error: Missing CMSIS_PACK_ROOT

Jmace · ‎2025-10-20

Hello,

I'm trying to get familiar with the STM32Cube extension for VSCode.
I generated a basic STM32 project using STM32CubeMX, for my NUCLEO-H723ZG board.

I then imported the generated cmake project using the extension tool, and configured it using the "setup STM32Cube project(s)" button of the extension, which created a launch.json file.

When I try to run the debug config, I get the following error : bound doStepSettingsValidation Failed: Device not found: Error: Missing CMSIS_PACK_ROOT

Here is the STM32Cube core output :

025-10-20 16:19:33.002 [Info] Adding STM32Cube CLI path to environment: c:\Users\Jacques\.vscode\extensions\stmicroelectronics.stm32cube-ide-core-1.0.3\resources\binaries\win32\x86_64
2025-10-20 16:19:33.057 [Info] Configuring CMSIS_PACK_ROOT environment: C:\Users\Jacques\AppData\Local\stm32cube\packs
2025-10-20 16:19:33.099 [Info] Configuring CUBE_BUNDLE_PATH environment: C:\Users\Jacques\AppData\Local\stm32cube\bundles
2025-10-20 16:19:33.805 [Info] cube wrapper version: 0.8.3
2025-10-20 16:19:33.816 [Info] Installing STM32Cube bundles prerequisites
2025-10-20 16:19:34.090 [Info] Syncing CMSIS-Pack metadata for C:\Users\Jacques\AppData\Local\stm32cube\packs
2025-10-20 16:19:34.091 [Info] NODE_EXTRA_CA_CERTS=undefined
2025-10-20 16:19:34.093 [Info] STM32Cube Core activated in 1113ms
2025-10-20 16:19:34.095 [Info] No need to sync metadata, since recently updated.
2025-10-20 16:19:34.442 [Info] Online bundle cache built

It seems the CMSIS_PACK_ROOT variable is indeed created.

I already read this thread : https://community.st.com/t5/stm32cubeide-for-visual-studio/missing-cmsis-pack-root/td-p/804489
It did not help me solve the issue.

Do you guys have any idea how to solve the issue ?

Thanks for your help

Julien D · ‎2025-10-20

Hello @Jmace,

This is unfortunately an old story that we are still unable to reproduce.

Do you have a lot of VSCode extensions installed in the default profile?

If so could you maybe try to create a separated VSCode profile with only "STM32CubeIDE for VSCode" extensions pack installed, and check if it works better?

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

View solution in original post

Julien D · ‎2025-10-20

Hello @Jmace,

This is unfortunately an old story that we are still unable to reproduce.

Do you have a lot of VSCode extensions installed in the default profile?

If so could you maybe try to create a separated VSCode profile with only "STM32CubeIDE for VSCode" extensions pack installed, and check if it works better?

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

Jmace · ‎2025-10-20

Hello @Julien D ,

Thanks for your prompt answer.

I indeed had a lots of extensions on my main profile.

Creating a dedicated profile with only the STM32Cube extensions fixed the issue!

FYI, here are the extensions installed on my main profile :

PS E:\Projets\STM32\workspace\nucleo-h7-vscode-test> code --list-extensions
angular.ng-template
continue.continue
denoland.vscode-deno
docker.docker
eclipse-cdt.memory-inspector
eclipse-cdt.serial-monitor
espressif.esp-idf-extension
marlinfirmware.auto-build
ms-azuretools.vscode-containers
ms-azuretools.vscode-docker
ms-python.debugpy
ms-python.python
ms-python.vscode-pylance
ms-python.vscode-python-envs
ms-vscode-remote.remote-containers
ms-vscode-remote.remote-ssh
ms-vscode-remote.remote-ssh-edit
ms-vscode-remote.remote-wsl
ms-vscode.cmake-tools
ms-vscode.cpptools
ms-vscode.cpptools-extension-pack
ms-vscode.cpptools-themes
ms-vscode.makefile-tools
ms-vscode.remote-explorer
ms-vscode.vscode-typescript-next
platformio.platformio-ide
prisma.prisma
ritwickdey.liveserver
rust-lang.rust-analyzer
stmicroelectronics.stm32-vscode-extension
stmicroelectronics.stm32cube-ide-build-analyzer
stmicroelectronics.stm32cube-ide-build-cmake
stmicroelectronics.stm32cube-ide-bundles-manager
stmicroelectronics.stm32cube-ide-clangd
stmicroelectronics.stm32cube-ide-core
stmicroelectronics.stm32cube-ide-debug-core
stmicroelectronics.stm32cube-ide-debug-generic-gdbserver
stmicroelectronics.stm32cube-ide-debug-jlink-gdbserver
stmicroelectronics.stm32cube-ide-debug-stlink-gdbserver
stmicroelectronics.stm32cube-ide-project-manager
stmicroelectronics.stm32cube-ide-registers
stmicroelectronics.stm32cube-ide-rtos
twxs.cmake

I'll try later to disable / enable extensions one by one to find which one caused the issue

Julien D · ‎2025-10-20

Thank @Jmace for sharing this list, this is a great starting point to hopefully conclude on something concrete this time.

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.