Subversive: how to add to svn ignore

I am using Subversive and I have the same question as Subclipse svn:ignore, but the solution did not work for me. Anyone knows how to add to svn:ignore files already added to a project with Sobversive?

If I delete it an开发者_如何学JAVAd create it again, there is a red exaclamation ('!') icon and I am not able to add it to svn:ignore

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You must delete the file and commit the deletion. Then you can re-add the file, and put it under svn:ignore.