Someone has already added that SSH key.

[Oleh Plyska]

Hi 
Could you please with adding ssh key?

Command `ssh -T git@bitbucket.org` show me next message:

C:\Users\oleh>ssh -T git@bitbucket.org
Enter passphrase for key 'C:\Users\oleh/.ssh/id_rsa':
authenticated via ssh key.

You can use git to connect to Bitbucket. Shell access is disabled

[Nic Brough -Adaptavist-]

I am sorry, I do not understand where you are stuck?

[Oleh Plyska]

The problem that i cannot add my ssh key to my current account. Each time I'm getting an error message "Someone has already added that SSH key".
Possible, i have added this key long time ago to another account, but now i cannot find this account. So, could you help with understanding which account has got this key?

[Nic Brough -Adaptavist-]

I'm sorry, I should have been able to work that out from the question, but I was not sure.

This message is telling you that you have tried to share a key with another account.  That's a poor security practice, and one you should not do.

If you can't remember what account the key was originally associated with, your best option is to create a new key for the new account.