When I want to push my app to Launchpad by doing quickly share --verbose, I get the following Gnome Keyring error:

Get Launchpad Settings
Traceback (most recent call last):
  File "/usr/share/quickly/templates/ubuntu-application/share.py", line 101, in <module>
    launchpad = launchpadaccess.initialize_lpi()
  File "/usr/lib/python2.7/dist-packages/quickly/launchpadaccess.py", line 91, in initialize_lpi
    allow_access_levels=["WRITE_PRIVATE"])
  File "/usr/lib/python2.7/dist-packages/launchpadlib/launchpad.py", line 539, in login_with
    credential_save_failed, version)
  File "/usr/lib/python2.7/dist-packages/launchpadlib/launchpad.py", line 342, in _authorize_token_and_login
    authorization_engine.unique_consumer_id)
  File "/usr/lib/python2.7/dist-packages/launchpadlib/credentials.py", line 282, in load
    return self.do_load(unique_key)
  File "/usr/lib/python2.7/dist-packages/launchpadlib/credentials.py", line 336, in do_load
    'launchpadlib', unique_key)
  File "/usr/lib/python2.7/dist-packages/keyring/core.py", line 34, in get_password
    return _keyring_backend.get_password(service_name, username)
  File "/usr/lib/python2.7/dist-packages/keyring/backend.py", line 154, in get_password
    items = gnomekeyring.find_network_password_sync(username, service)
gnomekeyring.IOError
ERROR: share command failed
Aborting

This used to work, so this means that I already have SSH and GPG configured. This is probably part of the explanation: I have this error when I am connected to this machine through a ssh tunnel with X forwarding. But I don't have it when I have physical access to the computer.

Could you please give me some indications on what to do?