How to use PS/2 core IP.looked easy but question can't be solved

Can you exactly write down the error displayed?

In fact, i downloaded an IP for ps/2 core and i use it in the sopc. But now when i wan to program it in IDE, i found that ps2_keyboard.h and ps2_mouse.h are not available in the library, so error appears. What should i do to solve this problem? Thank you.

after downloading the IP core file, where should i put the reg.h, .h and .c files? looking for u guys reply. thank you