For the login in one my project I use Xamarin.Auth for the permanent storing of the user's credential. The credential is valitated with a custom service ( not OAuth or similar) and I added this method for saving credential in a PCL Project (watch the attached's pictures) and during the call of
AccountStore.Create().Save(userCredential , appname) an exception is thrown by Xamarin.Auth:
**"Could not save account to KeyChain: -34018"**
this exception appear only on iOS platform , on Android platform nothing goes wrong.
Can anyone help me?