I did put parenthesis around the type, but it didn't matter. I still got the same error message. But now I'm not sure about whether I actually saved the file or not after I made the changes ... I'm used to programming in Visual Studio, which always saves all the files you have been working on before you use them in a compilation (AVR Studio does this to, but for some reason only for source files), or in Emacs which asks you for every file you have changed but not saved if you want to save it or not. Great, now I'm going to try that to tomorrow!
