Problem with McfcCcsDriver.cc

I Have done the following passages:
I have copied the code of Er:


Then i edit the name Er with mine as is shown, then i thought to add #include <McfccsMcc.h> as shown:

But when i built the project it doesn’t work anyway
Why?

One of the errors in the bottom-right pane of the last screenshot reads “unknown type name ‘McfcCcsMcc’; did you mean ‘McfcCccsMcc’?”. This suggests that in doing the search-replace substitutions you might have replaced incorrectly. Your new class must named named consistently everywhere !