connection_error
Description:
The D-Bus error name for the last disconnection or connection failure, (in particular, TP_ERROR_STR_CANCELLED
if it was
disconnected by user request), or null
if the account is connected.
One can receive change notifications on this property by connecting to the status_changed signal, or by connecting to the notify signal and using this property as the signal detail.
This is not guaranteed to have been retrieved until
prepare_async has finished; until then, the value is null
.