The package configuration script does not handle correctly the case of
both the amd64 and i386 packages being installed simultaneously on the
system (a situation arising, in my case, from the use of 32-bit Wine):
# dpkg -l | grep libgstreamer1.0-0
ii libgstreamer1.0-0:amd64 1.22.0-2 amd64 Core GStreamer libraries and elements
ii libgstreamer1.0-0:i386 1.22.0-2 i386 Core GStreamer libraries and elements
# dpkg-reconfigure libgstreamer1.0-0
dpkg-query: error: --status needs a valid package name but 'libgstreamer1.0-0' is not: ambiguous package name 'libgstreamer1.0-0' with more than one installed instance
Use --help for help about querying packages.
/usr/sbin/dpkg-reconfigure: libgstreamer1.0-0 is not installed