The common taxon of such horrors as DllHell, RpmHell, and ClasspathHell.  See also http://en.wikipedia.org/wiki/Dependency_hell

Often we don't want to be stuck ReinventingTheWheel, so we grab for a ready-made wheel off the shelf, as do many others.  Often, however, that wheel requires other wheels, and we're soon in a big messy DependencyGraph.

''Makes CopyAndPaste slightly less evil. After all, nature adopted it for solution-finding.''