and these are the rules for posting code
whatever Unity keeps saying, it says for a reason and also includes the line number. why do you think we somehow know what you’re doing, better than you do?
what are we supposed to do with your error if you remove all context from it?
thankfully your code is short and the error is obvious, however.
you’re calling the method transform.Rotate with one argument, and that doesn’t exist.
hence the C# tokenizer informs you that it expects a coma after the first argument, without even trying to compile any of it.
if you’ve paid attention to the line number (and exact character as well btw) which you haven’t give us, you would see that indeed it tells you to stop imagining a method that doesn’t exist.