Reading package lists... Done
Building dependency tree
Reading state information... Done
Package libjack-jackd2-0:i386 is not installed, so not removed
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 gstreamer0.10-plugins-good : Depends: libjack-jackd2-0 (>= 1.9.5~dfsg-14) but it is not going to be installed or
                                       libjack-0.116
 gstreamer0.10-plugins-good:i386 : Depends: libjack-jackd2-0:i386 (>= 1.9.5~dfsg-14) but it is not going to be installed or
                                            libjack-0.116:i386
 libasound2-plugins : Depends: libjack-jackd2-0 (>= 1.9.5~dfsg-14) but it is not going to be installed or
                               libjack-0.116
 libasound2-plugins:i386 : Depends: libjack-jackd2-0:i386 (>= 1.9.5~dfsg-14) but it is not going to be installed or
                                    libjack-0.116:i386
 libavdevice53 : Depends: libjack-jackd2-0 (>= 1.9.5~dfsg-14) but it is not going to be installed or
                          libjack-0.116
 libfluidsynth1 : Depends: libjack-jackd2-0 (>= 1.9.5~dfsg-14) but it is not going to be installed or
                           libjack-0.116
 libmlt4 : Depends: libjack-jackd2-0 (>= 1.9.5~dfsg-14) but it is not going to be installed or
                    libjack-0.116
 libportaudio2 : Depends: libjack-jackd2-0 (>= 1.9.5~dfsg-14) but it is not going to be installed or
                          libjack-0.116
 librtaudio4 : Depends: libjack-jackd2-0 (>= 1.9.5~dfsg-14) but it is not going to be installed or
                        libjack-0.116
 librtmidi1 : Depends: libjack-jackd2-0 (>= 1.9.5~dfsg-14) but it is not going to be installed or
                       libjack-0.116
 lmms : Depends: libjack-jackd2-0 (>= 1.9.5~dfsg-14) but it is not going to be installed or
                 libjack-0.116
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

And this is the recent content of /var/log/dkpg.log

2013-08-26 14:57:41 configure libjack-jackd2-0 1.9.8~dfsg.2-1precise1 <none>
2013-08-26 14:57:41 status unpacked libjack-jackd2-0 1.9.8~dfsg.2-1precise1
2013-08-26 14:57:41 status half-configured libjack-jackd2-0 1.9.8~dfsg.2-1precise1
2013-08-26 14:57:41 status installed libjack-jackd2-0 1.9.8~dfsg.2-1precise1
2013-08-26 14:57:41 status triggers-pending libc-bin 2.15-0ubuntu10.4
2013-08-26 14:57:41 trigproc libc-bin 2.15-0ubuntu10.4 <none>
2013-08-26 14:57:41 status half-configured libc-bin 2.15-0ubuntu10.4
2013-08-26 14:57:41 status installed libc-bin 2.15-0ubuntu10.4
2013-08-26 14:57:55 startup archives unpack
2013-08-26 14:57:56 install libjack-jackd2-0:i386 <none> 1.9.8~dfsg.2-1precise1
2013-08-26 14:57:56 status half-installed libjack-jackd2-0:i386 1.9.8~dfsg.2-1precise1
2013-08-26 14:57:56 status not-installed libjack-jackd2-0:i386 <none>
2013-08-26 14:59:31 startup packages configure
2013-08-26 15:05:31 startup archives unpack
2013-08-26 15:05:31 install libjack-jackd2-0 <none> 1.9.8~dfsg.2-1precise1
2013-08-26 15:05:31 status half-installed libjack-jackd2-0 1.9.8~dfsg.2-1precise1
2013-08-26 15:05:32 status unpacked libjack-jackd2-0 1.9.8~dfsg.2-1precise1
2013-08-26 15:05:32 status unpacked libjack-jackd2-0 1.9.8~dfsg.2-1precise1
2013-08-26 15:05:32 install libjack-jackd2-0:i386 <none> 1.9.8~dfsg.2-1precise1
2013-08-26 15:05:32 status half-installed libjack-jackd2-0:i386 1.9.8~dfsg.2-1precise1
2013-08-26 15:05:33 status not-installed libjack-jackd2-0:i386 <none>
2013-08-26 16:38:36 startup archives unpack
2013-08-26 16:38:37 install libjack-jackd2-0:i386 <none> 1.9.8~dfsg.2-1precise1
2013-08-26 16:38:37 status half-installed libjack-jackd2-0:i386 1.9.8~dfsg.2-1precise1
2013-08-26 16:38:37 status not-installed libjack-jackd2-0:i386 <none>
2013-08-26 16:43:50 startup archives unpack
2013-08-26 16:43:57 install libjack-jackd2-0:i386 <none> 1.9.8~dfsg.2-1precise1
2013-08-26 16:43:57 status half-installed libjack-jackd2-0:i386 1.9.8~dfsg.2-1precise1
2013-08-26 16:43:58 status not-installed libjack-jackd2-0:i386 <none>
2013-08-26 18:56:06 startup archives unpack
2013-08-26 18:56:13 install libjack-jackd2-0:i386 <none> 1.9.8~dfsg.2-1precise1
2013-08-26 18:56:13 status half-installed libjack-jackd2-0:i386 1.9.8~dfsg.2-1precise1
2013-08-26 18:56:12 status not-installed libjack-jackd2-0:i386 <none>