Current PySide packages depend on correct packages, see http://maemo.org/packages/package_in...0.3.1-1maemo2/ . What is likely happening is that some people might have/had old versions of pyside core/gui installed (can happen easily if you upgraded via OTA), and then you try to install something that needs the maemo5 module. The package manager then tries to install the module which corresponds to your existing pyside install -> end up with the wrong version for PR1.2 The best is to uninstall the packages which pulled in the old version of pyside and reinstall them again (so they could download the new one).