Authentication errors, unknown user?[iOS]

[Tunvir]

Hi

I am trying to authenticate FitBit from xamarin for iOS but can not authenticate app.

i am getting this error "Authentication errors unknown user".

Can anyone help?

[IoanbsuFitbit]

Tunvir,

to better assist you, please provide the details about request you're making and exact response that you're seeing.

The error response that you posted in your original post does exists in Fitbit API.

[Tunvir]

Got the solution.The error was for not using -- which used to open SFSafariController.

just using the param isUsingNativeUI : true  in OAuth2Authenticator  solve the problem.