In my Eclipse, when I add a ListView, I see an empty space where it should be, it looks like a button, but empty and can not be placed on the App screen. Maybe some file is corrupted if If so, could I do a check in Eclipse to analyze this? EDIT: The following happens, where is the place of the ListView, is a blank space, I think some file is corrupted, how do I have Eclipse parse the files to verify this?