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This is because the 32-bit library support is not installed,
For Ubuntu 13 and higher, multiarch has also been removed for direct dependencies,
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- sudo apt-get install package-name:i386 - http://askubuntu.com/questions/107230/what-happened-to-the-ia32-libs-package
- Discusses how to manually determine dependencies for package-name:i386 - http://askubuntu.com/questions/359156/how-do-you-run-a-32-bit-program-on-a-64-bit-version-of-ubuntu
- sudo apt-get install libc6:i386 libgcc1:i386 gcc-4.6-base:i386 libstdc++5:i386 libstdc++6:i386
For Ubuntu 12 and higher, ia32-lib has been removed in favour of multiarch,
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