unknown or unclassified error
an operation that requires NetworkManager failed because NetworkManager is not running
NetworkManager claimed that an operation succeeded, but the object that was allegedly created (eg, #NMRemoteConnection, #NMActiveConnection) was apparently destroyed before #NMClient could create a representation of it.
Describes errors that may result from operations involving a #NMClient.
D-Bus operations may also return errors from other domains, including #NMManagerError, #NMSettingsError, #NMAgentManagerError, and #NMConnectionError.