Preparing to replace mythtv-common 0.20.2-0ubuntu2 (using .../mythtv-common_0.20.99+trunk14513-0ubuntu0~mythbuntu2_all.deb) ...
Unpacking replacement mythtv-common ...
dpkg: error processing /var/cache/apt/archives/mythtv-common_0.20.99+trunk14513-0ubuntu0~mythbuntu2_all.deb (--unpack):
 trying to overwrite `/usr/share/mythtv/themes/default/text_button_on.png', which is also in package mythmusic
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/mythtv-common_0.20.99+trunk14513-0ubuntu0~mythbuntu2_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)