Could not acquire name on session bus

[AndresVia]

After initiate session, when I try to execute "xterm" from the ALT+F2 "dialog" a window pops out saying "Could not acquire name on session bus" (attached), later the error disappear without taking any action. Allowing me to execute "xterm". I think that the package related is gnome-shell, but I'm not totally sure. Please answer if any other info is needed.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: gnome-shell 3.4.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic-pae 3.2.14
Uname: Linux 3.2.0-23-generic-pae i686
ApportVersion: 2.0.1-0ubuntu2
Architecture: i386
Date: Mon Apr 16 12:18:56 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120328)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[bcharlessr (bmcharlessr)]

Started getting error after recent update to new kernel 3.2.0.27-generic. Only option is to logout, but when I select it, doesn't seem to affect anything else. Happens each reboot.

[Jeremy Bícha (jbicha)]

Thank you for reporting this bug to Ubuntu. Ubuntu 12.04 LTS reached End of Life in April. See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases

Please upgrade to Ubuntu 16.04 LTS and re-test. If the bug is still reproducible, increase the verbosity of the steps to recreate it so we can try again.

I apologize that we are not always to respond to bug reports promptly. Do feel free to report any other bugs you may find.