I put prj.conf files under C:\ncs\v2.5.2\nrf\samples\caf_prj\configuration\nrf5340dk_nrf5340_cpuapp folder. But west build failed with the following messages.
C:\ncs\v2.5.2\nrf\samples\caf_prj>west build -b nrf5340dk_nrf5340_cpuapp -- west build: generating a build system Loading Zephyr default modules (Zephyr base). -- Application: C:/ncs/v2.5.2/nrf/samples/caf_prj -- CMake version: 3.20.5 -- Using NCS Toolchain 2.5.20231017.848171396279 for building. (C:/ncs/toolchains/c57af46cb7/cmake) CMake Deprecation Warning at C:/ncs/v2.5.2/zephyr/cmake/modules/FindDeprecated.cmake:121 (message): 'PYTHON_PREFER' variable is deprecated. Please use Python3_EXECUTABLE instead. Call Stack (most recent call first): C:/ncs/v2.5.2/zephyr/cmake/modules/python.cmake:16 (find_package) C:/ncs/v2.5.2/zephyr/cmake/modules/zephyr_default.cmake:129 (include) C:/ncs/v2.5.2/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include) C:/ncs/v2.5.2/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boilerplate) CMakeLists.txt:8 (find_package) -- Found Python3: C:/ncs/toolchains/c57af46cb7/opt/bin/python.exe (found suitable version "3.8.2", minimum required is "3.8") found components: Interpreter -- Cache files will be written to: C:/ncs/v2.5.2/zephyr/.cache -- Zephyr version: 3.4.99 (C:/ncs/v2.5.2/zephyr) -- Found west (found suitable version "1.1.0", minimum required is "0.14.0") -- Board: nrf5340dk_nrf5340_cpuapp CMake Error at C:/ncs/v2.5.2/zephyr/cmake/modules/configuration_files.cmake:78 (message): No prj.conf file was found in the C:/ncs/v2.5.2/nrf/samples/caf_prj folder, please read the Zephyr documentation on application development. Call Stack (most recent call first): C:/ncs/v2.5.2/zephyr/cmake/modules/zephyr_default.cmake:129 (include) C:/ncs/v2.5.2/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include) C:/ncs/v2.5.2/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boilerplate) CMakeLists.txt:8 (find_package) -- Configuring incomplete, errors occurred! FATAL ERROR: command exited with status 1: 'C:\ncs\toolchains\c57af46cb7\opt\bin\cmake.EXE' -DWEST_PYTHON=C:/ncs/toolchains/c57af46cb7/opt/bin/python.exe '-BC:\ncs\v2.5.2\nrf\samples\caf_prj\build' -GNinja -DBOARD=nrf5340dk_nrf5340_cpuapp '-SC:\ncs\v2.5.2\nrf\samples\caf_prj'
Procedures to reproduce this issue are as follows.
1. Unzipping caf_prj.zip to C:\ncs\v2.5.2\nrf\samples folder
2. cd C:\ncs\v2.5.2\nrf\samples\caf_prj
3. west build -b nrf5340dk_nrf5340_cpuapp
