The process of creating different versions (snapshots) in the repository is depicted in the following graphic.
Please note that this picture fits primarily to Git.
For example, once installed you can do this from and command line: That's basically it.
If results are found, the package exists and you may continue with these steps: First, is depends on the package and you are making a number of assumptions.First, you are assuming the OP has identified the correct package name, as pointed out by saiarcot895 . In general, it is best to first identify the problem.Then if at all possible install from the repositories.If you have an older release of Ubuntu, you'll need to upgrade or to get xbmc from another place.If you have Ubuntu 12.04, make sure that you have turned on the universe repository. As Linux is highly case sensitive Please make sure you use all commands in smaller letters like "sudo" instead of "Sudo" Thank you for your interest in this question.