I\'m getting this error iPhone code signing keys found in keychain error Xamarin even after deleted Entitlements.plist when trying to build the HelloWorld_iPhon
Try to delete Entitlements.plist from iOS project and try to recompile project.
Yeah it seems bug in Xamarin Studio It has work around that you must have AppleID just to login on XCode. Try following:
(source: apple.com)
Try to rebuild and issues gone!!
In my case, there was already apple id but I clicked on ManageCertificate
and then I added certificate by clicking on plus sign and its done.