[Sugar-devel] Problems adding my source code to GIT at git.sugarlabs.org.

[Behavior Vehikel]

Hi,

In February I registerd to git.sugarlabs.org/
Now the first public release of my Kandid.activity is ready.
At the moment I am trying to push my local GIT repository to git.sugarlabs.org.
But there is problem "Permission denied (publickey). fatal: The remote
end hung up unexpectedly"

What did I miss?
Thomas

strom at vehikel:~/minimal/activities/Kandid.activity$ git status
# On branch master
nothing to commit (working directory clean)

strom at vehikel:~/minimal/activities/Kandid.activity$ git remote add origin
gitorious at git.sugarlabs.org:kandid/mainline.git

strom at vehikel:~/minimal/activities/Kandid.activity$ git push origin master
The authenticity of host 'git.sugarlabs.org (140.211.167.221)' can't
be established.
RSA key fingerprint is 1f:8a:17:50:d0:1f:6d:34:83:3c:46:63:81:c0:cd:e2.
Are you sure you want to continue connecting (yes/no)? y
Please type 'yes' or 'no': yes
Warning: Permanently added 'git.sugarlabs.org,140.211.167.221' (RSA)
to the list of known hosts.
Permission denied (publickey).
fatal: The remote end hung up unexpectedly

strom at vehikel:~/minimal/activities/Kandid.activity$ git tag -a v2

strom at vehikel:~/minimal/activities/Kandid.activity$ git push origin master
Permission denied (publickey).
fatal: The remote end hung up unexpectedly