Quoting Modestas Vainius <modestas@vainius.eu>:
You have a half-updated sid system. Well, the bug is that knode/libkdepim1a dependencies are not tight enough but please dist-upgrade before reporting _grave_ bugs. You don't have to wait till this bug is closed, just dist-upgrade and the problem will go away.
sorry, and thx :)! cu, michael