Error "handshake: Can't find fingerprint". What does it mean? What is missing?

[Kalinin-Andrey]

Hello, everyone!
I`m trying to create a client

client, err := telegram.NewClient(telegram.ClientConfig{ ...

in file telegram/common.go
on string err = m.CreateConnection()
I have an error "handshake: Can't find fingerprint".
What does it mean? What is missing?

Debug IDE in place with error (handshake.go):

As you can see variable m.publicKey is set and res.Fingerprints has been calculated.

Why are the calculation results not equal? And why b is negative?

[TinGimranov]

Hello! Have you found out what’s the problem?