thanosxx:
Yes.I compare the code with example of starter kit and it is different, on starter kit book ,before SETUP function there is 3 int,and I have problem with second line,but in software on (FILES examples ,starter kit there is only one before setup)
I can't get to my Arduino IDE and internet at the same time (old PC and OS+apps choices), I can't see your post and that code at the same time.
Every new IDE has versions of examples that fit that version. The starter book was published on some date but the IDE may have updated code. Did you try loading the keyboard example from the IDE?
You haven't posted enough code to tell us what your problem might be.
He made an ino file attachment to the first post.