Preparing to replace python-apt-common 0.7.100.1ubuntu5 (using .../python-apt-common_0.7.100.2ubuntu1_i386.deb) ...
Unpacking replacement python-apt-common ...
Preparing to replace python-apt 0.7.100.1ubuntu5 (using .../python-apt_0.7.100.2ubuntu1_i386.deb) ...
Unpacking replacement python-apt ...
Preparing to replace app-install-data 0.11.04.6 (using .../app-install-data_0.11.04.7_i386.deb) ...
Unpacking replacement app-install-data ...
Preparing to replace checkbox-gtk 0.11.1 (using .../checkbox-gtk_0.11.2_i386.deb) ...
Unpacking replacement checkbox-gtk ...
Preparing to replace checkbox 0.11.1 (using .../checkbox_0.11.2_i386.deb) ...
Unpacking replacement checkbox ...
Preparing to replace firefox-globalmenu 4.0~rc1+build1+nobinonly-0ubuntu1 (using .../firefox-globalmenu_4.0~rc2+build3+nobinonly-0ubuntu1_i386.deb) ...
Unpacking replacement firefox-globalmenu ...
Preparing to replace firefox 4.0~rc1+build1+nobinonly-0ubuntu1 (using .../firefox_4.0~rc2+build3+nobinonly-0ubuntu1_i386.deb) ...
Unpacking replacement firefox ...
Preparing to replace firefox-branding 4.0~rc1+build1+nobinonly-0ubuntu1 (using .../firefox-branding_4.0~rc2+build3+nobinonly-0ubuntu1_i386.deb) ...
Unpacking replacement firefox-branding ...
Preparing to replace firefox-gnome-support 4.0~rc1+build1+nobinonly-0ubuntu1 (using .../firefox-gnome-support_4.0~rc2+build3+nobinonly-0ubuntu1_i386.deb) ...
Unpacking replacement firefox-gnome-support ...
dpkg: considering deconfiguration of gstreamer0.10-plugins-bad, which would be broken by installation of gstreamer0.10-plugins-good ...
dpkg: yes, will deconfigure gstreamer0.10-plugins-bad (broken by gstreamer0.10-plugins-good).
Preparing to replace gstreamer0.10-plugins-good 0.10.28-0ubuntu1 (using .../gstreamer0.10-plugins-good_0.10.28-0ubuntu2_i386.deb) ...
De-configuring gstreamer0.10-plugins-bad ...
Unpacking replacement gstreamer0.10-plugins-good ...
dpkg: error processing /var/cache/apt/archives/gstreamer0.10-plugins-good_0.10.28-0ubuntu2_i386.deb (--unpack):
 trying to overwrite '/usr/lib/gstreamer-0.10/libgstshm.so', which is also in package gstreamer0.10-plugins-bad 0.10.21-1ubuntu4