org.freedesktop.DBus.Error.NoReply: Did not receive a reply.

I have a lot of similar bugs on differents packages: gnome-documents, gnome-language-selector, dolphin, etc

all of then when running on a terminaland executing a search or installing a language,etc gives :

org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: dbus 1.4.18-1ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic i686
NonfreeKernelModules: wl
ApportVersion: 2.0.1-0ubuntu3
Architecture: i386
Date: Sat Apr 14 23:45:36 2012
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcEnviron:
 LANGUAGE=pt_BR:pt:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
SourcePackage: dbus
UpgradeStatus: Upgraded to precise on 2012-01-17 (89 days ago)