eclipse can't recognize "nrf.h"

[JoonDong]

I typed preprocessor symbol NRF51 and specified include path to \components\device, but "nrf.h" isn't recognized in eclipse..

[Vidar Berg]

The auto-discovery feature should add necessary include paths and symbols automatically. Have you followed the steps outlined in the Enable auto discovery of symbols, include paths and compiler settings section to enable this? If so, please go through the second chapter in this troubleshooting guide and see if you have missed a step.

[JoonDong]

Auto discovery did not work although I followed the instructions on the blog. But I manually entered path and I was able to get rid of all but one error.

message is : make: ***[blink.elf] error 1

How can I solve it. I am an eclipse beginner. It is very complicated compared to keil..