RE: Cannot build matter project with nRF Connect v3.1.0

Patrick — Tue, 19 Aug 2025 23:47:05 GMT

Thank you for the help Vidar, I was able to get everything working once I installed the missing dependencies.

RE: Cannot build matter project with nRF Connect v3.1.0

Vidar Berg — Tue, 19 Aug 2025 06:49:55 GMT

Hi,

Thank you for the updates. I see the problem now which is that this new python dependency got introduced in SDK v3.1.0: https://github.com/nrfconnect/sdk-nrf/commit/8aa1591091e95c0d30db946732c02faa2643ad40. Unlike the Zephyr SDK, the NCS toolchain includes Python and the required modules. Otherwise, you need to install these dependencies manually.

If you have nrfutil installed, you can use the following command if you wish to use the NCS toolchain outside VS code:

$ source <(nrfutil sdk-manager toolchain env --ncs-version v3.1.0 --as-script)

RE: Cannot build matter project with nRF Connect v3.1.0

Patrick — Mon, 18 Aug 2025 20:05:27 GMT

Hi Vidar,

West list does show matter at v3.1.0. To be thorough, I checked both in a terminal within VSCode and a terminal in the nrf directory of the SDK.

To rule out any issues with my existing SDK directory, I have pulled a fresh copy of the SDK using the following steps:

west init -m https://github.com/nrfconnect/sdk-nrf --mr v3.1.0 ncs
west update
west zephyr-export

This fresh copy of the SDK exhibits the same behavior as before, failing to build because it cannot find the matter module. I also have tried clearing ccache with no change.

Building template
west build --build-dir /home/patrick/Development/projects/matter/template/build /home/patrick/Development/projects/matter/template --pristine --board nrf54l15dk/nrf54l15/cpuapp -- -DBOARD_ROOT=/home/patrick/Development/my_boards;/home/patrick/Development/projects/matter/template

-- west build: generating a build system
Loading Zephyr module(s) (Zephyr base): sysbuild_default
-- Found Python3: /home/patrick/Development/.venv/bin/python (found suitable version "3.13.7", minimum required is "3.10") found components: Interpreter
-- Cache files will be written to: /home/patrick/.cache/zephyr
-- Found west (found suitable version "1.4.0", minimum required is "0.14.0")
-- Board: nrf54l15dk, qualifiers: nrf54l15/cpuapp
Parsing /home/patrick/Development/projects/matter/template/Kconfig.sysbuild
Loaded configuration '/home/patrick/Development/projects/matter/template/build/_sysbuild/empty.conf'
Merged configuration '/home/patrick/Development/projects/matter/template/sysbuild.conf'
Configuration saved to '/home/patrick/Development/projects/matter/template/build/zephyr/.config'
Kconfig header saved to '/home/patrick/Development/projects/matter/template/build/_sysbuild/autoconf.h'
-- 
   *****************************
   * Running CMake for mcuboot *
   *****************************

Loading Zephyr default modules (Zephyr base).
-- Application: /home/patrick/Development/ncs/bootloader/mcuboot/boot/zephyr
-- CMake version: 4.0.3-dirty
-- Found Python3: /home/patrick/Development/.venv/bin/python (found suitable version "3.13.7", minimum required is "3.10") found components: Interpreter
-- Cache files will be written to: /home/patrick/.cache/zephyr
-- Zephyr version: 4.1.99 (/home/patrick/Development/ncs/zephyr)
-- Found west (found suitable version "1.4.0", minimum required is "0.14.0")
-- Board: nrf54l15dk, qualifiers: nrf54l15/cpuapp
-- Found host-tools: zephyr 0.17.4 (/home/patrick/Development/toolchains/zephyr-sdk-0.17.4)
-- Found toolchain: zephyr 0.17.4 (/home/patrick/Development/toolchains/zephyr-sdk-0.17.4)
-- Found Dtc: /home/patrick/Development/toolchains/zephyr-sdk-0.17.4/sysroots/x86_64-pokysdk-linux/usr/bin/dtc (found suitable version "1.7.0", minimum required is "1.4.6")
-- Found BOARD.dts: /home/patrick/Development/ncs/zephyr/boards/nordic/nrf54l15dk/nrf54l15dk_nrf54l15_cpuapp.dts
-- Found devicetree overlay: /home/patrick/Development/projects/matter/template/sysbuild/mcuboot/boards/nrf54l15dk_nrf54l15_cpuapp.overlay
-- Generated zephyr.dts: /home/patrick/Development/projects/matter/template/build/mcuboot/zephyr/zephyr.dts
-- Generated pickled edt: /home/patrick/Development/projects/matter/template/build/mcuboot/zephyr/edt.pickle
-- Generated devicetree_generated.h: /home/patrick/Development/projects/matter/template/build/mcuboot/zephyr/include/generated/zephyr/devicetree_generated.h
Parsing /home/patrick/Development/ncs/bootloader/mcuboot/boot/zephyr/Kconfig
Loaded configuration '/home/patrick/Development/ncs/zephyr/boards/nordic/nrf54l15dk/nrf54l15dk_nrf54l15_cpuapp_defconfig'
Merged configuration '/home/patrick/Development/projects/matter/template/sysbuild/mcuboot/prj.conf'
Merged configuration '/home/patrick/Development/projects/matter/template/sysbuild/mcuboot/boards/nrf54l15dk_nrf54l15_cpuapp.conf'
Merged configuration '/home/patrick/Development/ncs/nrf/subsys/bootloader/bl_override/override_external_mcuboot.conf'
Merged configuration '/home/patrick/Development/ncs/nrf/subsys/partition_manager/ext_flash_mcuboot_secondary.conf'
Merged configuration '/home/patrick/Development/projects/matter/template/build/mcuboot/zephyr/.config.sysbuild'
Configuration saved to '/home/patrick/Development/projects/matter/template/build/mcuboot/zephyr/.config'
Kconfig header saved to '/home/patrick/Development/projects/matter/template/build/mcuboot/zephyr/include/generated/zephyr/autoconf.h'
-- Found GnuLd: /home/patrick/Development/toolchains/zephyr-sdk-0.17.4/arm-zephyr-eabi/arm-zephyr-eabi/bin/ld.bfd (found version "2.38")
-- The C compiler identification is GNU 12.2.0
-- The CXX compiler identification is GNU 12.2.0
-- The ASM compiler identification is GNU
-- Found assembler: /home/patrick/Development/toolchains/zephyr-sdk-0.17.4/arm-zephyr-eabi/bin/arm-zephyr-eabi-gcc
=========== Generating psa_crypto_config ===============
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_SPM: False
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_C: True
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER: False
Backup: CONFIG_MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT: False
Backup: CONFIG_MBEDTLS_THREADING_C: False
Backup: CONFIG_MBEDTLS_THREADING_ALT: False
=========== Checkpoint: backup ===============
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_SPM: False
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_C: True
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER: False
Restore: CONFIG_MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT: False
Restore: CONFIG_MBEDTLS_THREADING_C: False
Restore: CONFIG_MBEDTLS_THREADING_ALT: False
=========== End psa_crypto_config ===============
=========== Generating psa_crypto_library_config ===============
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_C: True
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER: False
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_SPM: False
Backup: CONFIG_MBEDTLS_USE_PSA_CRYPTO: True
Backup: CONFIG_MBEDTLS_PLATFORM_PRINTF_ALT: False
Backup: CONFIG_MBEDTLS_THREADING_C: False
Backup: CONFIG_MBEDTLS_THREADING_ALT: False
=========== Checkpoint: backup ===============
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_C: True
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER: False
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_SPM: False
Restore: CONFIG_MBEDTLS_USE_PSA_CRYPTO: True
Restore: CONFIG_MBEDTLS_PLATFORM_PRINTF_ALT: False
Restore: CONFIG_MBEDTLS_THREADING_C: False
Restore: CONFIG_MBEDTLS_THREADING_ALT: False
=========== End psa_crypto_library_config ===============
-- Using ccache: /usr/bin/ccache
-- Found gen_kobject_list: /home/patrick/Development/ncs/zephyr/scripts/build/gen_kobject_list.py
MCUBoot bootloader key file: /home/patrick/Development/ncs/bootloader/mcuboot/root-ed25519.pem
CMake Warning at CMakeLists.txt:412 (message):
  WARNING: Using default MCUboot signing key file, this file is for debug use
  only and is not secure!


-- Configuring done (4.7s)
-- Generating done (0.1s)
-- Build files have been written to: /home/patrick/Development/projects/matter/template/build/mcuboot
-- 
   ******************************
   * Running CMake for template *
   ******************************

Loading Zephyr default modules (Zephyr base).
-- Application: /home/patrick/Development/projects/matter/template
-- CMake version: 4.0.3-dirty
-- Found Python3: /home/patrick/Development/.venv/bin/python (found suitable version "3.13.7", minimum required is "3.10") found components: Interpreter
-- Cache files will be written to: /home/patrick/.cache/zephyr
-- Zephyr version: 4.1.99 (/home/patrick/Development/ncs/zephyr)
-- Found west (found suitable version "1.4.0", minimum required is "0.14.0")
-- Board: nrf54l15dk, qualifiers: nrf54l15/cpuapp
-- Found host-tools: zephyr 0.17.4 (/home/patrick/Development/toolchains/zephyr-sdk-0.17.4)
-- Found toolchain: zephyr 0.17.4 (/home/patrick/Development/toolchains/zephyr-sdk-0.17.4)
-- Found Dtc: /home/patrick/Development/toolchains/zephyr-sdk-0.17.4/sysroots/x86_64-pokysdk-linux/usr/bin/dtc (found suitable version "1.7.0", minimum required is "1.4.6")
-- Found BOARD.dts: /home/patrick/Development/ncs/zephyr/boards/nordic/nrf54l15dk/nrf54l15dk_nrf54l15_cpuapp.dts
-- Found devicetree overlay: /home/patrick/Development/projects/matter/template/boards/nrf54l15dk_nrf54l15_cpuapp.overlay
-- Generated zephyr.dts: /home/patrick/Development/projects/matter/template/build/template/zephyr/zephyr.dts
-- Generated pickled edt: /home/patrick/Development/projects/matter/template/build/template/zephyr/edt.pickle
-- Generated devicetree_generated.h: /home/patrick/Development/projects/matter/template/build/template/zephyr/include/generated/zephyr/devicetree_generated.h
Parsing /home/patrick/Development/projects/matter/template/Kconfig
Loaded configuration '/home/patrick/Development/ncs/zephyr/boards/nordic/nrf54l15dk/nrf54l15dk_nrf54l15_cpuapp_defconfig'
Merged configuration '/home/patrick/Development/projects/matter/template/prj.conf'
Merged configuration '/home/patrick/Development/projects/matter/template/build/template/zephyr/.config.sysbuild'
Configuration saved to '/home/patrick/Development/projects/matter/template/build/template/zephyr/.config'
Kconfig header saved to '/home/patrick/Development/projects/matter/template/build/template/zephyr/include/generated/zephyr/autoconf.h'
-- Found GnuLd: /home/patrick/Development/toolchains/zephyr-sdk-0.17.4/arm-zephyr-eabi/arm-zephyr-eabi/bin/ld.bfd (found version "2.38")
-- The C compiler identification is GNU 12.2.0
-- The CXX compiler identification is GNU 12.2.0
-- The ASM compiler identification is GNU
-- Found assembler: /home/patrick/Development/toolchains/zephyr-sdk-0.17.4/arm-zephyr-eabi/bin/arm-zephyr-eabi-gcc
CMake Warning at /home/patrick/Development/ncs/nrf/cmake/version_app.cmake:19 (message):
  APP_VERSION: git rev-parse failed: fatal: not a git repository (or any of
  the parent directories): .git
Call Stack (most recent call first):
  /home/patrick/Development/ncs/nrf/CMakeLists.txt:26 (include)


=========== Generating psa_crypto_config ===============
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_SPM: False
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_C: True
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER: False
Backup: CONFIG_MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT: False
Backup: CONFIG_MBEDTLS_THREADING_C: True
Backup: CONFIG_MBEDTLS_THREADING_ALT: True
=========== Checkpoint: backup ===============
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_SPM: False
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_C: True
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER: False
Restore: CONFIG_MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT: False
Restore: CONFIG_MBEDTLS_THREADING_C: True
Restore: CONFIG_MBEDTLS_THREADING_ALT: True
=========== End psa_crypto_config ===============
=========== Generating psa_crypto_library_config ===============
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_C: True
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER: False
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_SPM: False
Backup: CONFIG_MBEDTLS_USE_PSA_CRYPTO: True
Backup: CONFIG_MBEDTLS_PLATFORM_PRINTF_ALT: False
Backup: CONFIG_MBEDTLS_THREADING_C: True
Backup: CONFIG_MBEDTLS_THREADING_ALT: True
=========== Checkpoint: backup ===============
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_C: True
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER: False
Restore: CONFIG_MBEDTLS_PSA_CRYPTO_SPM: False
Restore: CONFIG_MBEDTLS_USE_PSA_CRYPTO: True
Restore: CONFIG_MBEDTLS_PLATFORM_PRINTF_ALT: False
Restore: CONFIG_MBEDTLS_THREADING_C: True
Restore: CONFIG_MBEDTLS_THREADING_ALT: True
=========== End psa_crypto_library_config ===============
################### OPENTHREAD REPORT ###################
+ Target device: nrf54l15
+ Thread version: v1.4
+ OpenThread library feature set: Minimal Thread Device (MTD)
+ Thread device type: Minimal End Device (MED)
+ OpenThread Library: openthread/lib/nrf54lx/soft-float/v1.4/mtd
+ OpenThread NCS revision: ncs-thread-reference-20250402
+ OpenThread NCS SHA: 0e2666713
+ NCS revision: v3.1.0
+ NCS SHA: 6c6e5b3249
+ No differences in the used Thread library in comparison to the NCS v3.0.0 release.
###################        END        ###################
-- Using ccache: /usr/bin/ccache
-- Found Python3: /home/patrick/Development/.venv/bin/python (found version "3.13.7") found components: Interpreter
-- Found gen_kobject_list: /home/patrick/Development/ncs/zephyr/scripts/build/gen_kobject_list.py
-- Including signing script: /home/patrick/Development/ncs/nrf/cmake/sysbuild/image_signing.cmake
CMake Warning at /home/patrick/Development/ncs/zephyr/CMakeLists.txt:2232 (message):
  __ASSERT() statements are globally ENABLED


Traceback (most recent call last):
  File "/home/patrick/Development/ncs/modules/lib/matter/scripts/codegen_paths.py", line 26, in <module>
    from matter.idl.generators.path_resolution import expand_path_for_idl
ModuleNotFoundError: No module named 'matter'
CMake Warning (dev) at /home/patrick/Development/ncs/modules/lib/matter/build/chip/chip_codegen.cmake:66 (add_custom_command):
  Keyword OUTPUT requires a value, but none was given.

  Policy CMP0175 is not set: add_custom_command() rejects invalid arguments.
  Run "cmake --help-policy CMP0175" for policy details.  Use the cmake_policy
  command to set the policy and suppress this warning.
Call Stack (most recent call first):
  /home/patrick/Development/ncs/modules/lib/matter/src/app/chip_data_model.cmake:114 (chip_codegen)
  /home/patrick/Development/ncs/nrf/samples/matter/common/cmake/data_model.cmake:20 (chip_configure_data_model)
  CMakeLists.txt:37 (ncs_configure_data_model)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Error at /home/patrick/Development/ncs/modules/lib/matter/build/chip/chip_codegen.cmake:66 (add_custom_command):
  add_custom_command Wrong syntax.  A TARGET or OUTPUT must be specified.
Call Stack (most recent call first):
  /home/patrick/Development/ncs/modules/lib/matter/src/app/chip_data_model.cmake:114 (chip_codegen)
  /home/patrick/Development/ncs/nrf/samples/matter/common/cmake/data_model.cmake:20 (chip_configure_data_model)
  CMakeLists.txt:37 (ncs_configure_data_model)


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

  Location: /home/patrick/Development/projects/matter/template
Call Stack (most recent call first):
  cmake/modules/sysbuild_images.cmake:43 (ExternalZephyrProject_Cmake)
  cmake/modules/sysbuild_default.cmake:21 (include)
  /home/patrick/Development/ncs/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:75 (include)
  /home/patrick/Development/ncs/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boilerplate)
  /home/patrick/Development/ncs/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/bin/cmake -DWEST_PYTHON=/home/patrick/Development/.venv/bin/python -B/home/patrick/Development/projects/matter/template/build -GNinja -DBOARD=nrf54l15dk/nrf54l15/cpuapp '-DBOARD_ROOT=/home/patrick/Development/my_boards;/home/patrick/Development/projects/matter/template' -S/home/patrick/Development/ncs/zephyr/share/sysbuild -DAPP_DIR:PATH=/home/patrick/Development/projects/matter/template

Update:

I installed the toolchain and sdk through VSCode and was able to build the project. While this works, I am curious to know how to get my manually installed SDK and toolchain working as before.

Update 2:

After further experimentation I think I am getting closer to the issue. Using SDK v3.1.0, manually installed, with toolchain v3.1.0, I can build my project. When I switch to the Zephyr toolchain, either 0.17.0 or 0.17.4, I can no longer build. Is this expected behavior?

RE: Cannot build matter project with nRF Connect v3.1.0

Vidar Berg — Mon, 18 Aug 2025 11:17:05 GMT

Hello,

Please check the output of the "west update" command to confirm that the Matter repo got updated to v3.1.0. Note that the update command will continue updating the other repositories even if a git or connectivity error occurs while updating the Matter repository.

From West update when I try the same:

Matter revision as specified in the nrf manifest:

Best regards,

Vidar