 Executing task: nRF Connect: Build [incremental]: untitled/build 

Building untitled
west build --build-dir c:/Users/2768/untitled/build c:/Users/2768/untitled
[0/5] Performing build step for 'untitled'
[1/5] Linking C executable zephyr\zephyr_pre0.elf
FAILED: zephyr/zephyr_pre0.elf zephyr/zephyr_pre0.map C:/Users/2768/untitled/build/untitled/zephyr/zephyr_pre0.map 
cmd.exe /C "cd . && C:\ncs\toolchains\b8b84efebd\opt\zephyr-sdk\arm-zephyr-eabi\bin\arm-zephyr-eabi-gcc.exe  -gdwarf-4 zephyr/CMakeFiles/zephyr_pre0.dir/misc/empty_file.c.obj -o zephyr\zephyr_pre0.elf  zephyr/CMakeFiles/offsets.dir/./arch/arm/core/offsets/offsets.c.obj  -T  zephyr/linker_zephyr_pre0.cmd  -Wl,-Map=C:/Users/2768/untitled/build/untitled/zephyr/zephyr_pre0.map  -Wl,--whole-archive  app/libapp.a  zephyr/libzephyr.a  zephyr/arch/common/libarch__common.a  zephyr/arch/arch/arm/core/libarch__arm__core.a  zephyr/arch/arch/arm/core/cortex_m/libarch__arm__core__cortex_m.a  zephyr/arch/arch/arm/core/mpu/libarch__arm__core__mpu.a  zephyr/lib/libc/picolibc/liblib__libc__picolibc.a  zephyr/lib/libc/common/liblib__libc__common.a  zephyr/soc/soc/nrf52840/libsoc__nordic.a  zephyr/drivers/usb/device/libdrivers__usb__device.a  zephyr/drivers/usb/common/nrf_usbd_common/libdrivers__usb__common__nrf_usbd_common.a  zephyr/drivers/audio/libdrivers__audio.a  zephyr/drivers/clock_control/libdrivers__clock_control.a  zephyr/drivers/console/libdrivers__console.a  zephyr/drivers/flash/libdrivers__flash.a  zephyr/drivers/hwinfo/libdrivers__hwinfo.a  zephyr/drivers/pinctrl/libdrivers__pinctrl.a  zephyr/drivers/serial/libdrivers__serial.a  zephyr/drivers/timer/libdrivers__timer.a  modules/nrf/drivers/hw_cc3xx/lib..__nrf__drivers__hw_cc3xx.a  modules/hal_nordic/modules/hal_nordic/nrfx/libmodules__hal_nordic__nrfx.a  modules/segger/libmodules__segger.a  -Wl,--no-whole-archive  zephyr/kernel/libkernel.a  -LC:/Users/2768/untitled/build/untitled/zephyr  zephyr/arch/common/libisr_tables.a  -mcpu=cortex-m4  -mthumb  -mabi=aapcs  -mfp16-format=ieee  -mtp=soft  -fuse-ld=bfd  -Wl,--gc-sections  -Wl,--build-id=none  -Wl,--sort-common=descending  -Wl,--sort-section=alignment  -Wl,-u,_OffsetAbsSyms  -Wl,-u,_ConfigAbsSyms  -nostdlib  -static  -Wl,-X  -Wl,-N  -Wl,--orphan-handling=warn  -Wl,-no-pie  -specs=picolibc.specs  -DPICOLIBC_LONG_LONG_PRINTF_SCANF  C:/ncs/v3.1.0/nrfxlib/crypto/nrf_cc310_platform/lib/cortex-m4/soft-float/no-interrupts/libnrf_cc310_platform_0.9.19.a -L"c:/ncs/toolchains/b8b84efebd/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/thumb/v7e-m/nofp" -lc -lgcc && cmd.exe /C "cd /D C:\Users\2768\untitled\build\untitled\zephyr && C:\ncs\toolchains\b8b84efebd\opt\bin\cmake.exe -E true""
c:/ncs/toolchains/b8b84efebd/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe: app/libapp.a(main.c.obj): in function `pdm_isr_handler_body':
C:/Users/2768/untitled/src/main.c:52: undefined reference to `nrfx_pdm_irq_handler'
collect2.exe: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.
FAILED: _sysbuild/sysbuild/images/untitled-prefix/src/untitled-stamp/untitled-build C:/Users/2768/untitled/build/_sysbuild/sysbuild/images/untitled-prefix/src/untitled-stamp/untitled-build 
cmd.exe /C "cd /D C:\Users\2768\untitled\build\untitled && C:\ncs\toolchains\b8b84efebd\opt\bin\cmake.exe --build ."
ninja: build stopped: subcommand failed.
FATAL ERROR: command exited with status 1: 'C:\ncs\toolchains\b8b84efebd\opt\bin\cmake.EXE' --build C:/Users/2768/untitled/build

 *  The terminal process terminated with exit code: 1. 
 *  Terminal will be reused by tasks, press any key to close it. 
