[NCS v2.0.0] matter light_bulb example build failed. region `FLASH' overflowed by 38188 bytes

[inya_lake]

Hi, I built free standing example and I'm getting errors in the end. Attached is complete log. Below is build log

[942/963] Linking CXX static library app\libapp.a
[943/963] Linking CXX executable zephyr\zephyr_pre0.elf
FAILED: zephyr/zephyr_pre0.elf zephyr/zephyr_pre0.map 
cmd.exe /C "cd . && C:\ncs\toolchains\v2.0.0\opt\zephyr-sdk\arm-zephyr-eabi\bin\arm-zephyr-eabi-g++.exe   @CMakeFiles\zephyr_pre0.rsp -o zephyr\zephyr_pre0.elf  && cmd.exe /C "cd /D C:\my_projects\matter_light_bulb_200_\build\zephyr && C:\ncs\toolchains\v2.0.0\opt\bin\cmake.exe -E echo ""
c:/ncs/toolchains/v2.0.0/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/10.3.0/../../../../arm-zephyr-eabi/bin/ld.exe: zephyr\zephyr_pre0.elf section `rodata' will not fit in region `FLASH'
c:/ncs/toolchains/v2.0.0/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/10.3.0/../../../../arm-zephyr-eabi/bin/ld.exe: region `FLASH' overflowed by 38188 bytes
collect2.exe: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.
FATAL ERROR: command exited with status 1: 'c:\ncs\toolchains\v2.0.0\opt\bin\cmake.EXE' --build 'c:\my_projects\matter_light_bulb_200_\build'
The terminal process terminated with exit code: 1.

Terminal will be reused by tasks, press any key to close it.

west build --build-dir c:\my_projects\matter_light_bulb_200_\build c:\my_projects\matter_light_bulb_200_ --pristine --board nrf52840dk_nrf52840 -- -DNCS_TOOLCHAIN_VERSION:STRING="NONE" -DBOARD_ROOT:STRING="c:/my_projects/matter_light_bulb_200_" -DCONFIG_DEBUG_OPTIMIZATIONS:STRING="y" -DCONFIG_DEBUG_THREAD_INFO:STRING="y" -DCONF_FILE:STRING="c:/my_projects/matter_light_bulb_200_/prj.conf" -DDTC_OVERLAY_FILE:STRING="c:/my_projects/matter_light_bulb_200_/boards/nrf52840dk_nrf52840.overlay"

matter_lightBulbExample.txt

[Sigurd]

Hi,

Try to change CONFIG_DEBUG_OPTIMIZATIONS from y to n

[inya_lake]

which file should define that or change it? I did it in proj.conf file but getting same error. thanks.

[Sigurd]

1) If you are using nRF Connect for VS Code:
Try leaving this checkbox unchecked when you add the build configuration

2) If you are building with west directly, change

west build --build-dir c:\my_projects\matter_light_bulb_200_\build c:\my_projects\matter_light_bulb_200_ --pristine --board nrf52840dk_nrf52840 -- -DNCS_TOOLCHAIN_VERSION:STRING="NONE" -DBOARD_ROOT:STRING="c:/my_projects/matter_light_bulb_200_" -DCONFIG_DEBUG_OPTIMIZATIONS:STRING="y" -DCONFIG_DEBUG_THREAD_INFO:STRING="y" -DCONF_FILE:STRING="c:/my_projects/matter_light_bulb_200_/prj.conf" -DDTC_OVERLAY_FILE:STRING="c:/my_projects/matter_light_bulb_200_/boards/nrf52840dk_nrf52840.overlay"

to

west build --build-dir c:\my_projects\matter_light_bulb_200_\build c:\my_projects\matter_light_bulb_200_ --pristine --board nrf52840dk_nrf52840 -- -DNCS_TOOLCHAIN_VERSION:STRING="NONE" -DBOARD_ROOT:STRING="c:/my_projects/matter_light_bulb_200_" -DCONFIG_DEBUG_OPTIMIZATIONS:STRING="n" -DCONFIG_DEBUG_THREAD_INFO:STRING="n" -DCONF_FILE:STRING="c:/my_projects/matter_light_bulb_200_/prj.conf" -DDTC_OVERLAY_FILE:STRING="c:/my_projects/matter_light_bulb_200_/boards/nrf52840dk_nrf52840.overlay"

[inya_lake]

Thanks, that works. 

[Actif]

Hi, would it be possible to provide some explanation? I understand that enabling debugging is taking up more space. But what if we need it?

Could you suggest a solution that would enable us to modify flash partition, or at least understand the build error so we can dig ourself?