How to fix request failed on channel 0

Question

When I want to connect to my server like this

ssh -a username@my-server.de -p 22

it gives me two error messages:

PTY alloca         


        

Answer 1

This was happening when I was trying to use sudo on ssh -t git@github.com after adding my local user's public key to github

Just a head's up to the google happy people like me