Https://Www.Google.Ru/Search?Client=Safari&Rls=En&Q=CredStore+-+PerformQuery+-+Error+Copying+Matching+Creds.++Error=-25300&Ie=UTF-8&Oe=UTF-8&Gfe_rd=Cr&Dcr=0&Ei=TNDdWZavKqfG7gTzlpyoCQ
И попадаем сюда:
https://twittercommunity.com/t/twitterkit-3-0-4-error-credstore-performquery-error-copying-matching-creds/92922/3
ответ:
Actually, its because Twitter.sharedInstance().sessionStore.session()?.userID returned nil. i.e.) I
just had to make sure the user was successfully logged into Twitter.