This question already has an answer here:
At first I had installed a 32-bit version of Ubuntu 12.10 alongside Windows 7 Premium. When I tried installing Steam onto Ubuntu from the Steam client, I got an error message stating
Wrong architecture 'i386'.
Then I tried installing Steam through Ubuntu Software Center, and I got one message saying that "Package dependencies cannot be resolved: This error could be caused by required additional software packages which are missing or not installable. Furthermore there could be a conflict between software packages which are not allowed to be installed at the same time."
I also had another message stating, "The application Ubuntu Software Center has experienced and internal error. There was an error submitting the transaction"
Since the Software Center said "Steam (64-bit)", I figured that I should have installed the 64-bit version instead of the 32-bit version. So, I uninstalled my previous Ubuntu and installed the 64-bit version, which if I'm correct is amd64 and not i386.
I tried installing Steam through the website and Software Center again and still the same messages appear. I would appreciate some help on the choice between 32-bit and 64-bit versions of 12.10 (if I'm not mistaken, 12.10 is the newest version of Ubuntu),or anything else I can do to fix this.
I hope to get this resolved, as this is my first experience with Ubuntu and I'm really liking this OS (aside from the problem I'm dealing with now.)