Yes. I have one: ia32-libs, or 32-bit compatibility libraries for 64-bit systems, is only available in the amd64repositories, i.e. if you are using a 64-bit version of Ubuntu. You only get the "no installation candidate" error if you are already on a 32-bit system Can you confirm that you have 64-bit Ubuntu? Type "uname -m" in terminal. For 64-bit it should be x86_64