I am using a example peripheral_uart and want to implement the code where i can read the data from flash and write also. For this i have done following changes in code->
1. In prj.config ---> added line
CONFIG_MPU_ALLOW_FLASH_WRITE=y
CONFIG_SOC_FLASH_NRF_EMULATE_ONE_BYTE_WRITE_ACCESS=y
but i get following error->

Anyone can please tell me how can i add any module/lib.