gvim: GConf-WARNING **: Client failed to connect to the D-BUS daemon

64-bit Debian GNU/Linux 8.2.0
# gvim mount
(gvim:1657): gnomeUI-WARNING **:When connecting to the session manager:
The specified authentication protocol is not supported.
(gvim:1657): GConf-WARNING **:Client failed to connect to the D-BUS daemon:
No reply received. Possible causes include:remote application not sending reply, message bus security policy blocking reply, reply timeout, or network connection disruption.
Solution:Use the “soo–” command to get the root identity.

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