@Pl45m4
Solution Explorer, right click on the project name -> Qt -> "Upgrade to latest Qt project format version". -- this is no longer an option on the Qt menu!! I have not been able to update Qt_INCLUDEPATH_!
@eramne Is it working for you now? I've got a problem linking FFmpeg with static Qt, which I've logged at https://bugreports.qt.io/browse/QTBUG-115052 but if it's working for you, feel free to mark this as Solved