Bug 37261 - Getting 401 error after successfully connecting to Twitter.
Summary: Getting 401 error after successfully connecting to Twitter.
Status: NEW
Alias: None
Product: Components
Classification: Xamarin
Component: Xamarin Components ()
Version: N/A
Hardware: PC Windows
: --- normal
Target Milestone: ---
Assignee: Miljenko Cvjetko Mel
Depends on:
Reported: 2015-12-23 10:20 UTC by Jakub Holovsky
Modified: 2017-06-28 10:06 UTC (History)
3 users (show)

Is this bug a regression?: ---
Last known good build:

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Description Jakub Holovsky 2015-12-23 10:20:49 UTC
Currently we are using Xamarin.Auth to connect to Twitter.

var authenticator = new OAuth1Authenticator(Platform.TwitterConsumerKey, Platform.TwitterConsumerSecret,
                new Uri("https://api.twitter.com/oauth/request_token"),
                new Uri("https://api.twitter.com/oauth/authorize"),
                new Uri("https://api.twitter.com/oauth/access_token"), new Uri("https://mobile.twitter.com/"));
            authenticator.Error += onAuthenticatorError;
            authenticator.Completed += onAuthenticatorCompleted;

The Authentication succeeds and onAuthenticatorCompleted is called which is all good.
The problem is that right after that onAuthenticatorError is called even though I can successfully communicate with Twitter without any problems. I am wondering why that is happening.

The exception that I can view onAuthenticatorError is following:

"The remote server returned an error: (401) Authorization Required."

I am not sure if this is a bug in Xamarin.Auth or related to code in our project. Another developer has the same issue as posted in here:

Comment 1 Miljenko Cvjetko Mel 2016-01-05 23:32:26 UTC
Ahoj Jakub

I do maintain Xamarin.Auth my fork and samples are here:


I have tried to make my samples descriptive as much as posible. I have
even added markdown property which should explain how to setup server:


Currently we have problems with iOS and savinf AccountStore and as soon as we solve that we'll proceed with publishing nugets and component.


best regards

Comment 2 Adam Hartley [MSFT] 2017-06-28 10:06:17 UTC
Reassigning this to Components as it appears to be an issue with Xamarin.Auth rather than Xamarin.Android