In some cases Name collisions appear from time to time as a yellow tool tip on the windows taskbar. They do not appear on the messages pane. Therefore it is pretty hard to remember/recover the name clash in a wide directory structure. It would be nice to have this in the message pane addressed, so it would be possible to jump directly to the location even if you have done something else in the meantime.
Update: Alternatively one can search for the bracket characters () in the message pane to locate the relevant files.