2 Problems: Problem: No valid solution found with just resolvables of best architecture. Problem: virtualbox-ose cannot be installed due to missing dependencies Problem: No valid solution found with just resolvables of best architecture. With this run only resolvables with the best architecture have been regarded. Regarding all possible resolvables takes time, but can come to a valid result. Solution 1: Make a solver run with ALL possibilities. Regarding all resolvables with a compatible architecture.