Svn How to Ignore the engine folder?

I got this error

svn: warning: W155007: ‘E:\Program Files\Epic Games\UE_4.19\Engine\Content’ is not a working copy

I do not want add this to my SVN, how can I fix this?

Regarding.

I’ve fixed it!
i won’t tell anything because it’s headaches to do it myself. So do you.