From LQWiki

How do I get rid of the following line at the top of the page? "No file by this name exists, but you can upload one."

It's not available to delete from the edit page.

Seems to be a programming error, look at Special:WantedPages, there you will find File:Host is a wanted page which is nonsense. --ThorstenStaerk 17:58, November 12, 2009 (UTC)