See the attached screenshot. I'm at a breakpoint, looking at the variable pane. Where are the local variables? Why is it calling the parameter _arg1? This used to be working so I imagine I've messed up something in the environment, but what?
If you have error in your code and didn't compile, it will add breakpoint in that line of your last compiled version.
If it is not that, try cleaning your project in Project -> Clean
An small suggestion next time don't upload the picture, instead use the little camara icon to embed it in your post, and also you'd be better using jpg or png rather than bmp.