Article shows that the reason of interpretations diversity of quantum mechanics is that interpretations are not associated with the classical physics. The second reason is the impossibility of an operational definition of the state vector. The problem is the incompatibility of the philosophical foundations of interpretation that is a challenge to build a unified picture of the world. To solve the problem the interpretations general philosophical grounds of quantum mechanics are identified and their classification is built. Also it is shown that in more general theories, which are part of quantum mechanics, we can combine (align) the philosophical foundations of interpretations.