Comment 39 for bug 1707352

Still no joy:

Hit:1 http://security.ubuntu.com/ubuntu artful-security InRelease
Hit:2 http://archive.canonical.com/ubuntu artful InRelease
Hit:3 http://gb.archive.ubuntu.com/ubuntu artful InRelease
Get:4 http://gb.archive.ubuntu.com/ubuntu artful-updates InRelease [65.4 kB]
Hit:5 http://qgis.org/debian-nightly artful InRelease
Fetched 65.4 kB in 0s (71.4 kB/s)
Reading package lists... Done
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package libsane is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
  libsane1:i386 libsane1

E: Package 'libsane' has no installation candidate