alt_avalon_checksum problem!

I am trying to use the component editor to define a new component called alt_avalon_checksum.But when i contain the component head file in the c

source file,several errors appear:

...

../test_checksum.c:20:41: altera_avalon_checksum_regs.h: No such file or directory

../test_checksum.c: In function `main':

...

And my quartusII version is 8.1.

what should i do with this problem.