Hm, this is for the Qt4 version; cannot help there, because I can only test the KF5 builds right now.
You could try adding missing "#include <QHash>" lines to the files which appear in the error messages.
Hm, this is for the Qt4 version; cannot help there, because I can only test the KF5 builds right now.
You could try adding missing "#include <QHash>" lines to the files which appear in the error messages.