When executing sudo apt get upgrade in Ubuntu, the following error is reported:

Setting up bluez (4.101-0ubuntu13.1) ...
reload: Job is not running: dbus
invoke-rc.d: initscript dbus, action "force-reload" failed.
start: Job failed to start
invoke-rc.d: initscript bluetooth, action "start" failed.
dpkg: error processing package bluez (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of bluez-alsa:i386:
 bluez-alsa:i386 depends on bluez; however:
  Package bluez is not configured yet.
 
dpkg: error processing package bluez-alsa:i386 (--configure):
 dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
                          Errors were encountered while processing:
 bluez
 bluez-alsa:i386
E: Sub-process /usr/bin/dpkg returned an error code (1)

You can solve this problem by executing the following command:

$ sudo mv /var/lib/dpkg/info/ /var/lib/dpkg/info_old/
$ sudo mkdir /var/lib/dpkg/info/
$ sudo apt-get update
...
$ sudo apt-get -f install
    Reading package lists... Done
    Building dependency tree
    Reading state information... Done
    0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
    7 not fully installed or removed.
    After this operation, 0 B of additional disk space will be used.
    Setting up bluez (4.101-0ubuntu13.1) ...
    Setting up blueman (1.23-git201403102151-1ubuntu1) ...
    Setting up bluetooth (4.101-0ubuntu13.1) ...
    Setting up bluez-alsa:amd64 (4.101-0ubuntu13.1) ...
    Setting up bluez-alsa:i386 (4.101-0ubuntu13.1) ...
    Setting up bluez-gstreamer (4.101-0ubuntu13.1) ...
    Setting up bluez-utils (4.101-0ubuntu13.1) ...
$ sudo mv /var/lib/dpkg/info/* /var/lib/dpkg/info_old/
$ sudo rm -rf /var/lib/dpkg/info
$ sudo mv /var/lib/dpkg/info_old/ /var/lib/dpkg/info/

After entering the above command, there is no problem in executing sudo apt get update and sudo apt get upgrade.