Comment 42 for bug 1016294

sudo dpkg --add-architecture i386 is no longer supported in newer versions of Ubuntu and does not work just like Ubuntu Warrior said:

https://answers.launchpad.net/ubuntu/+source/dpkg/+question/221647
http://lists.linaro.org/pipermail/linaro-dev/2012-May/012224.html

But Clement says that file is not longer being used either and we must use: /var/lib/dpkg/arch.

I have amended that file as per Clement and updated and still this issue persists:

sudo apt-get install ia32-libs-multiarch
Package ia32-libs-multiarch 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

E: Package 'ia32-libs-multiarch' has no installation candidate

So what else can we do?