Hello, I am using sdk12.2.0 and pca10028 dk. I am using one code downloaded from unknown source. The code is used to store data in flash. When I compile through keil I don't get any error in code except that the code size is limited (as I am not using licensed version). When I try to compile makefile I am getting error as attached cmderror1.PNG I have added files and path to the code. I have also made changes in sdk_config file. I am also attaching my makefile and main file here makefile - makefile.txt
main - main.txt
Error2 - cmderror2.PNG