Twitter integration in Windows Phone 8 was done using Hammock nuget package. In Windows Phone 8.1 Hammock is not supported. Is there any other method to integrate twitter with the app.
Linq2Twitter does not use Hammock as far as i know: https://linqtotwitter.codeplex.com/
It is quite well documented.
Or of you just want to share a status you can use the ShareStatusTask: https://msdn.microsoft.com/en-us/library/windows/apps/hh394027%28v=vs.105%29.aspx