Comment 12 for bug 1660016

@Andrew Those apps should not use ubuntu-app-platform since they ship their own. There's no use for ubuntu-app-platform if the app ships its own libraries. But if ubuntu-app-platform is in use, one shouldn't mix a module from different Qt version and a module from ubuntu-app-platform's version.

ubuntu-app-platform should be expanded to include what's generally needed within Qt 5.6 series, so that only applications that require newer Qt like 5.7 or 5.9 ship their own Qt. Definitely all modules from Qt Base source like print support belong in the platform snap.

I've just confirmed that ubuntu-terminal-app also ships its own Qt version.