Eclipse could not delete error

Question

I\'m working on a project with Eclipse and by now everything was fine, but last time I\'ve tried building it, it returned the error,

\"The project was

Answer 1

I see this semi-regularly on Windows. I think it's a bug or race in Eclipse, maybe a race with a virus checker which doesn't like a delete immediately followed by a write to the same file that was deleted. The fix I use is to use Project -- Clean from the menu bar.

@Ash is right in the comments above that you should not have resources in your output folder. To help avoid that, I always change the name of my output folder from "bin" to something more obvious like "eclipse/classes"