Hi,
I mean compare with Tivaware example projects such as "hello". I have that at "C:\lm4f120\boards\ek-lm4f120xl"
I am not familiar with lab 9. Do you have hw_types.h at include folder?
I have hw_types at "C:\lm4f120\inc". if your hw_types.h is at your inc folder. This #include below should be at your C file.
#include "inc/hw_types.h"
-kel