Intel ARM DS 2020 Problem (unresolved inclusion :<stdio.h)

I have installed arm ds 2020 licensed version and now i have import below example

I have seen that there is simple “hello Tim” code but it also show “?” in front of #include <stdio.h>,

If i put curser on it it says “unresolved inclusion :<stdio.h>”

*attached is the prints-creen of same


o i am not able to build this code …