I find this error "An unexpected error occurred while manipulating the navigational
structure of this Web." in SharePoint 2013 navigation in my site.
I found the below hot-fix but for SharePoint 2010 only. Please advise me.
http://blogs.msdn.com/b/joerg_sinemus/archive/2013/02/12/february-2013-sharepoint-2010-hotfix.aspx
Prince