I am building firmware using nrf connect sdk v2.8.0 and I am seeing those warning on the build
CMake Warning at F:/ncs/v2.8.0/zephyr/CMakeLists.txt:952 (message): No SOURCES given to Zephyr library: subsys__mgmt__mcumgr__grp__zephyr_basic Excluding target from build. CMake Warning at F:/ncs/v2.8.0/zephyr/CMakeLists.txt:952 (message): No SOURCES given to Zephyr library: drivers__pwm Excluding target from build.
Here is the prj.conf
# Config PWM CONFIG_PWM=y # CONFIG_PWM_NRFX=y CONFIG_LED=n # CONFIG_PWM_LOG_LEVEL_DBG=n # Config PWM for LEDs and Buzzer CONFIG_NRFX_PWM0=n # Disable other instances unless needed CONFIG_NRFX_PWM1=y # Enable the first PWM instance CONFIG_NRFX_PWM2=n # Disable other instances unless needed CONFIG_NRFX_PWM3=n # Disable other instances unless needed # Enable mcumgr. CONFIG_MCUMGR=y # Ensure an MCUboot-compatible binary is generated. CONFIG_BOOTLOADER_MCUBOOT=y # Enable FOTA over BLE CONFIG_NCS_SAMPLE_MCUMGR_BT_OTA_DFU=y CONFIG_NCS_SAMPLE_MCUMGR_BT_OTA_DFU_SPEEDUP=y CONFIG_SECURE_BOOT=y CONFIG_IMG_MANAGER=y CONFIG_MCUBOOT_IMG_MANAGER=y CONFIG_IMG_ERASE_PROGRESSIVELY=y # This is enabled only in prodcution, but will limit debugging and breakpoints # CONFIG_DISABLE_FLASH_PATCH=y # already defined in mcuboot.conf # Enable the Bluetooth (unauthenticated) and shell mcumgr transports. CONFIG_BT_SMP=y CONFIG_ZCBOR=y CONFIG_STREAM_FLASH=y CONFIG_MCUMGR_TRANSPORT_BT=y CONFIG_MCUMGR_TRANSPORT_BT_PERM_RW=n CONFIG_MCUMGR_TRANSPORT_BT_CONN_PARAM_CONTROL=y CONFIG_MCUMGR_GRP_IMG=y CONFIG_MCUMGR_GRP_OS=y # Enable MCUmgr Packet Reassembly feature over Bluetooth and its # configuration dependencies. MCUmgr buffer size is optimized to fit one SMP # packet divided into five Bluetooth Write Commands, transmitted with the # maximum possible MTU value: 498 bytes. CONFIG_MCUMGR_TRANSPORT_BT_REASSEMBLY=y CONFIG_MCUMGR_TRANSPORT_NETBUF_SIZE=2475 CONFIG_MCUMGR_GRP_OS_MCUMGR_PARAMS=y # Enable custom SMP request to erase settings partition. CONFIG_MCUMGR_GRP_ZBASIC=y CONFIG_MCUMGR_GRP_ZBASIC_STORAGE_ERASE=n CONFIG_MCUMGR_GRP_OS_ECHO=y CONFIG_MCUMGR_GRP_OS_INFO=y