Parser Error: ")" expected

Ok, I'm using C# on MonoDevelop 2.4 and I got this weird error:

The 开发者_JAVA技巧tooltip says that it's a 'Parser Error: ")" expected.' Funny thing is: it works! Compiles and runs without a hitch.

The only problem is, the entire class doesn't show up in the classes pad. How do I resolve this problem?

My guess is that MonoDevelop doesn't understand optional parameters yet... or at least the version you're using doesn't - even though the compiler itself does.