"Package 'Suite repair utility' could not be installed. Error number: -1" - during installation of SDL Trados Studio 2015 Freelance Plus Upgrade from SDL Trados Studio 2014; tried Workaround 1: Add registration key; still the same problem. Do not want to deinstall Studio 2014 as I am in the middle of a project and don't want to be left stranded without any SDL Trados Studio version. How can I install SDL Trados Studio 2015?