I was able to workaround the issue by adding "Multi-Arch: same" to the amd64 package entries of libsdl-net and libsdl-mixer in the /var/lib/dpkg/status file.
I was then able to install the new dpkg and proceed normally. You might want to try the same for libcanberra-gtk-module,
I was able to workaround the issue by adding "Multi-Arch: same" to the amd64 package entries of libsdl-net and libsdl-mixer in the /var/lib/ dpkg/status file.
I was then able to install the new dpkg and proceed normally. You might want to try the same for libcanberra- gtk-module,