How to use CMakePresets with west and sysbuild in NCS v2.7.0?

RE: How to use CMakePresets with west and sysbuild in NCS v2.7.0?

Amanda Hsieh — Tue, 29 Apr 2025 19:42:17 GMT

[quote user="koos"]build it with west build --board=nrf52840dk/nrf52840 -- --preset build[/quote]

Try this command:

west build --board=nrf52840dk/nrf52840 --pristine

RE: How to use CMakePresets with west and sysbuild in NCS v2.7.0?

koos — Tue, 29 Apr 2025 19:24:08 GMT

I see, but that was four months ago, while the release notes of the April 2025 version of the nRF Connect for VS Code extension mention the following:

Added support for CMake presets for sysbuild configurations.

https://docs.nordicsemi.com/bundle/nrf-connect-vscode/page/release_notes/connect/2025.4.106.html

RE: How to use CMakePresets with west and sysbuild in NCS v2.7.0?

Amanda Hsieh — Tue, 29 Apr 2025 19:18:47 GMT

See my colleague's answer this post:

Devs say that Sysbuild configuration in CMakePresets.json is not supported yet. We are not able to give any estimates for potential support of this.

RE: How to use CMakePresets with west and sysbuild in NCS v2.7.0?

koos — Tue, 29 Apr 2025 19:16:37 GMT

I double checked and it can be reproduced by following these steps:

open the hello_world sample
add a build configuration using the vscode extension and leave everything at default settings
use the "Save Configuration as Preset" option
build it with west build --board=nrf52840dk/nrf52840 -- --preset build
the build fails

RE: How to use CMakePresets with west and sysbuild in NCS v2.7.0?

koos — Tue, 29 Apr 2025 19:05:03 GMT

Oh that's indeed confusing, but that's not the issue, it's just a warning somehow, cause it does actually detect the board (when it uses the parent/child method).

So if I add the "-b <board_name>" command, that first warning goes away, but the CMake error is still the same.

RE: How to use CMakePresets with west and sysbuild in NCS v2.7.0?

Amanda Hsieh — Tue, 29 Apr 2025 18:45:55 GMT

Add "-b <board_name>" to the command.

What board are you using? If you are using nRF52840DK, the command would be

west build -b nrf52840dk_nrf52840 -d ${targetDir} --sysbuild -- --preset ${presetName}

RE: How to use CMakePresets with west and sysbuild in NCS v2.7.0?

koos — Tue, 29 Apr 2025 18:42:11 GMT

Hi Amanda,

Forgot to mention, but I already tried that, it gives me the following error:

WARNING: This looks like a fresh build and BOARD is unknown; so it probably won't work. To fix, use --board=<your-board>.
Note: to silence the above message, run 'west config build.board_warn false'
-- west build: generating a build system
CMake Error: Could not read presets from /opt/nordic/ncs/v2.7.0/zephyr/share/sysbuild:
File not found: /opt/nordic/ncs/v2.7.0/zephyr/share/sysbuild/CMakePresets.json
FATAL ERROR: command exited with status 1: /opt/homebrew/bin/cmake -DWEST_PYTHON=/opt/nordic/ncs/toolchains/f8037e9b83/opt/python@3.9/bin/python3.9 -B/Users/koos/Documents/projects/***/***_fw/app/build_release_test -GNinja --preset build_***_release -S/opt/nordic/ncs/v2.7.0/zephyr/share/sysbuild -DAPP_DIR:PATH=/Users/koos/Documents/projects/***/***_fw/app

How did you get that command to work?

Kind regards,

Koos

RE: How to use CMakePresets with west and sysbuild in NCS v2.7.0?

Amanda Hsieh — Tue, 29 Apr 2025 18:32:25 GMT

Hi,

[quote user=""]

I'm using this west command in a nRF Connect command line on v2.7.0:

west build -d ${targetDir} -- --preset ${presetName}

[/quote]

Add "--sysbuild" into your command as

west build -d ${targetDir} --sysbuild -- --preset ${presetName}

See Building with sysbuild documentation.

Regards,
Amanda H.