Zephyr Tools - build errors

zpm1066

Hi Jared,

I just tried installing the latest Zephyr Tools and ran into issues when attempting to build a sample. The zephyrtools installation and rest of the setup installed successfully. No errors reported.

zephyrtools has “pkwalify”.

(env) pioneer15@pioneer15 ~ % pip show pykwalify
Name: pykwalify
Version: 1.8.0
Summary: Python lib/cli for JSON/YAML schema validation
Home-page: http://github.com/grokzen/pykwalify
Author: Johan Andersson
Author-email: Grokzen@gmail.com
License: MIT
Location: /Users/pioneer15/.zephyrtools/env/lib/python3.14/site-packages
Requires: docopt, python-dateutil, ruamel.yaml
Required-by: west



Here is the error:
 
 *  Executing task: west build -b circuitdojo_feather_nrf9151/nrf9151/ns -d build/circuitdojo_feather_nrf9151 --sysbuild 

-- west build: generating a build system
Loading Zephyr module(s) (Zephyr base): sysbuild_default
-- Found Python3: /Users/pioneer15/.zephyrtools/env/bin/python3 (found suitable version "3.14.3", minimum required is "3.10") found components: Interpreter
-- Cache files will be written to: /Users/pioneer15/Library/Caches/zephyr
-- Found west (found suitable version "1.5.0", minimum required is "0.14.0")
-- Board: circuitdojo_feather_nrf9151, Revision: 3, qualifiers: nrf9151/ns
Parsing /Users/pioneer15/dojo/zephyr/share/sysbuild/Kconfig
Loaded configuration '/Users/pioneer15/dojo/nfed/samples/at_client/build/circuitdojo_feather_nrf9151/_sysbuild/empty.conf'
Merged configuration '/Users/pioneer15/dojo/nfed/samples/at_client/build/circuitdojo_feather_nrf9151/_sysbuild/empty.conf'
Merged configuration '/Users/pioneer15/dojo/nfed/samples/at_client/sysbuild.conf'
Configuration saved to '/Users/pioneer15/dojo/nfed/samples/at_client/build/circuitdojo_feather_nrf9151/zephyr/.config'
Kconfig header saved to '/Users/pioneer15/dojo/nfed/samples/at_client/build/circuitdojo_feather_nrf9151/_sysbuild/autoconf.h'

   *****************************
   * Running CMake for mcuboot *
   *****************************

Loading Zephyr default modules (Zephyr base).
-- Application: /Users/pioneer15/dojo/bootloader/mcuboot/boot/zephyr
-- CMake version: 4.2.1
-- Found Python3: /usr/local/opt/python/libexec/bin/python (found suitable version "3.14.3", minimum required is "3.10") found components: Interpreter
-- Cache files will be written to: /Users/pioneer15/Library/Caches/zephyr
-- Zephyr version: 4.1.99 (/Users/pioneer15/dojo/zephyr)
CMake Error at /Users/pioneer15/dojo/zephyr/cmake/modules/boards.cmake:195 (message):
  Error finding board: circuitdojo_feather_nrf9151

  Error message: Traceback (most recent call last):

    File "/Users/pioneer15/dojo/zephyr/scripts/list_boards.py", line 11, in <module>
      import pykwalify.core

  ModuleNotFoundError: No module named 'pykwalify'

jaredwolff

Re-run Zephyr Tools: Init Repo on your project root. It should re-fetch all the python deps.

zpm1066

Hi Jared,

Repeated “Zephyr Tools: Init Repo”. Still, the same error. Re-installed Zephyr Tools and performed “Zephyr Tools: Init Repo” after “.zephyrtools” removal. Unfortunately, still go the same error.

Environment: iMac running macOS Sequoia 15.7.2. The Zephyr Tools installation seems to be successful:

Requirement already satisfied: PyYAML>=6.0 in /Users/pioneer15/.zephyrtools/env/lib/python3.14/site-packages (from -r /Volumes/PioneerD/2026_dev/dojo/zephyr/scripts/requirements-base.txt (line 11)) (6.0.3)
Requirement already satisfied: pykwalify in /Users/pioneer15/.zephyrtools/env/lib/python3.14/site-packages (from -r /Volumes/PioneerD/2026_dev/dojo/zephyr/scripts/requirements-base.txt (line 14)) (1.8.0)

Python environment looks fine, as I can activate the Zephyr Tools virtual env, launch Python and “import pykwalify.core”.

Python 3.14.3 (main, Feb  3 2026, 15:32:20) [Clang 17.0.0 (clang-1700.6.3.2)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import pykwalify.core
>>> quit()
(env) pioneer15@pioneer15 dojo % `

jaredwolff

Did you switch SDK versions for your application? Did you try deleting your build folder?

zpm1066

HI Jared,

Thanks.

No, I’m using the default setup that uses nRF Connect SDK 3.1.1.
Yes, I’ve tried deleting the build folder a few times. Also, tried running a different sample and tried multiple re-installs.

I use nRF Connect SDK for VSCode daily. Since you updated “Zephyr Tools”, I thought I’d give it a quick spin to see how it has progressed since the initial release. The issue is probably an environment issue of some sort. I’ll dig further and also try the Zephyr Tools installation on another Mac tomorrow.

jaredwolff

I bet you the Nordic env is overriding the Zephyr Tools one. I’ve had to fully disable and restart for builds to work afterwards

Can you share the full log for a pristine build

zpm1066

Hi Jared,

Sorry, I was out of town. Here is the pristine build output.

The pristine build appears to be defaulting to the NCS Python3. I tried a few things without success. Is there any work around without making any changes to the NCS environment. Thanks.

Executing task: west build -b circuitdojo_feather_nrf9151/nrf9151/ns -p -d build/circuitdojo_feather_nrf9151 --sysbuild 
-- west build: making build dir /Volumes/PioneerD/2026_dev/dojo/nfed/samples/at_client/build/circuitdojo_feather_nrf9151 pristine
-- west build: generating a build system
Loading Zephyr module(s) (Zephyr base): sysbuild_default
-- Found Python3: /Users/pioneer15/.zephyrtools/env/bin/python3 (found suitable version "3.14.3", minimum required is "3.10") found components: Interpreter
-- Cache files will be written to: /Users/pioneer15/Library/Caches/zephyr
-- Found west (found suitable version "1.5.0", minimum required is "0.14.0")
-- Board: circuitdojo_feather_nrf9151, Revision: 3, qualifiers: nrf9151/ns
Parsing /Volumes/PioneerD/2026_dev/dojo/zephyr/share/sysbuild/Kconfig
Loaded configuration '/Volumes/PioneerD/2026_dev/dojo/nfed/samples/at_client/build/circuitdojo_feather_nrf9151/_sysbuild/empty.conf'
Merged configuration '/Volumes/PioneerD/2026_dev/dojo/nfed/samples/at_client/build/circuitdojo_feather_nrf9151/_sysbuild/empty.conf'
Merged configuration '/Volumes/PioneerD/2026_dev/dojo/nfed/samples/at_client/sysbuild.conf'
Configuration saved to '/Volumes/PioneerD/2026_dev/dojo/nfed/samples/at_client/build/circuitdojo_feather_nrf9151/zephyr/.config'
Kconfig header saved to '/Volumes/PioneerD/2026_dev/dojo/nfed/samples/at_client/build/circuitdojo_feather_nrf9151/_sysbuild/autoconf.h'

-- 
   *****************************
   * Running CMake for mcuboot *
   *****************************

Loading Zephyr default modules (Zephyr base).
-- Application: /Volumes/PioneerD/2026_dev/dojo/bootloader/mcuboot/boot/zephyr
-- CMake version: 4.2.3
-- Found Python3: /usr/local/opt/python/libexec/bin/python (found suitable version "3.14.3", minimum required is "3.10") found components: Interpreter
-- Cache files will be written to: /Users/pioneer15/Library/Caches/zephyr
-- Zephyr version: 4.1.99 (/Volumes/PioneerD/2026_dev/dojo/zephyr)
CMake Error at /Volumes/PioneerD/2026_dev/dojo/zephyr/cmake/modules/boards.cmake:195 (message):
  Error finding board: circuitdojo_feather_nrf9151

  Error message: Traceback (most recent call last):

    File "/Volumes/PioneerD/2026_dev/dojo/zephyr/scripts/list_boards.py", line 11, in <module>
      import pykwalify.core

  ModuleNotFoundError: No module named 'pykwalify'

Call Stack (most recent call first):
  /Volumes/PioneerD/2026_dev/dojo/zephyr/cmake/modules/zephyr_default.cmake:131 (include)
  /Volumes/PioneerD/2026_dev/dojo/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include)
  /Volumes/PioneerD/2026_dev/dojo/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boilerplate)
  CMakeLists.txt:18 (find_package)


-- Configuring incomplete, errors occurred!
CMake Error at cmake/modules/sysbuild_extensions.cmake:530 (message):
  CMake configure failed for Zephyr project: mcuboot

  Location: /Volumes/PioneerD/2026_dev/dojo/bootloader/mcuboot/boot/zephyr
Call Stack (most recent call first):
  cmake/modules/sysbuild_images.cmake:43 (ExternalZephyrProject_Cmake)
  cmake/modules/sysbuild_default.cmake:21 (include)
  /Volumes/PioneerD/2026_dev/dojo/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:75 (include)
  /Volumes/PioneerD/2026_dev/dojo/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boilerplate)
  /Volumes/PioneerD/2026_dev/dojo/zephyr/share/sysbuild-package/cmake/SysbuildConfig.cmake:8 (include)
  template/CMakeLists.txt:10 (find_package)


-- Configuring incomplete, errors occurred!
FATAL ERROR: command exited with status 1: /usr/local/bin/cmake -DWEST_PYTHON=/Users/pioneer15/.zephyrtools/env/bin/python3 -B/Volumes/PioneerD/2026_dev/dojo/nfed/samples/at_client/build/circuitdojo_feather_nrf9151 -GNinja -DBOARD=circuitdojo_feather_nrf9151/nrf9151/ns -S/Volumes/PioneerD/2026_dev/dojo/zephyr/share/sysbuild -DAPP_DIR: PATH=/Volumes/PioneerD/2026_dev/dojo/nfed/samples/at_client

 *  The terminal process "/bin/zsh '-l', '-c', 'west build -b circuitdojo_feather_nrf9151/nrf9151/ns -p -d build/circuitdojo_feather_nrf9151 --sysbuild'" terminated with exit code: 1. 
 *  Terminal will be reused by tasks, press any key to close it.

jaredwolff

@zpm1066 disable NCS plugin and restart VSCode

zpm1066

Thanks.