# Setting up the toolchain on widows

**URL:** <https://dev.unawatch.com/t/setting-up-the-toolchain-on-widows/35>\
**Category:** Help & Feedback\
**Created:** [August 21, 2026, 4:36pm UTC](https://dev.unawatch.com/t/setting-up-the-toolchain-on-widows/35 "2026-08-21T16:36:38Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![LilMouse](https://avatars.discourse-cdn.com/v4/letter/l/aca169/32.png) [@LilMouse](https://dev.unawatch.com/u/LilMouse)\
**Post date:** [August 21, 2026, 4:36pm UTC](https://dev.unawatch.com/t/setting-up-the-toolchain-on-widows/35/1 "2026-08-21T16:36:38Z")

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I am following the installation guide for the toolchain for windows.

STM32CubeIDE seems to be preferring its vscode extension over the eclipse based IDE and when I used that, it got complicated.  
The extension allows the installation of bundles. The ‘gnu-tools-for-stm32’ provides the correct toolchain and there is also a default bundle for cmake. Which is great!

It however does not set up the path and the `. ./una-sdk/Utilities/Scripts/export-stm32-tools.ps1 `command does not fine the right tools because of that. By adding the downloaded bundle to my path (`AppData\Local\stm32cube\bundles\gnu-tools-for-stm32\14.3.1+st.2\bin`) it works.

I also had to install `make` via `choco install make` since it isn’t provided with the vscode extension.

Might just be a me issue, but I didn’t want to install the IDE itself since it requires an account on their website.

Maybe there should be a specific bit in the guide about this?

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**Author:** ![LilMouse](https://avatars.discourse-cdn.com/v4/letter/l/aca169/32.png) [@LilMouse](https://dev.unawatch.com/u/LilMouse)\
**Post date:** [August 21, 2026, 5:10pm UTC](https://dev.unawatch.com/t/setting-up-the-toolchain-on-widows/35/2 "2026-08-21T17:10:24Z")

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Another thing in the guide: before calling `cp "${env:UNA_SDK}\Examples\Apps\Alarm\*" MyAlarm -Recurse -Force` the directory should already exist so you should already have executed `mkdir MyAlarm`

And lastly, even though I installed pyelftools (0.33) via the requirements.txt, I still get the error  
`<MyPath>/una-sdk/Utilities/Scripts/app_packer/app_packer.py", line 40, in `  
`from elftools.elf.elffile import ELFFile`  
`ModuleNotFoundError: No module named 'elftools'`

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**Author:** ![lewis\_una](https://yyz2.discourse-cdn.com/flex048/user_avatar/dev.unawatch.com/lewis_una/32/42_2.png) [@lewis\_una](https://dev.unawatch.com/u/lewis_una)\
**Post date:** [August 21, 2026, 7:44pm UTC](https://dev.unawatch.com/t/setting-up-the-toolchain-on-widows/35/4 "2026-08-21T19:44:51Z")

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Hi both, thanks for pointing out! We’ll aim to get this tidied up next week.