DoAuthentication step 2 on Xamarin Studio

[daniel1984tp]

Hi boys,
i'm trying to use TLSharp on Xamarin studio, but code crash calling client.Connect()... on step 2 of DoAuthentication Task.
System return this error code on step 2 of DoAuthentication task:
System.IO.EndOfStreamException: Failed to read past end of stream.
Have an ideas?
Thank you so much!!

[sochix]

Did you follow a tutorial?

[daniel1984tp]

Yes i did, do you have any idea? Why doesn't work?
I update App api_id and App api_hash but the second step of DoAuthentication return 0 bytes.

[sochix]

Did you try running tests? You need to create working session.dat to start