This solution is configured to build in Release x64 configuration.

1)We have used Qt 5.9.1 version for building the application.
You need to put the files of QT 5.9.1 in folder .\Demos\RibbonApplication\External Dependencies\QT_5.9.1

2)We have used QtitanRibbon 4.12.0 version for building the application.
You need to put the files of QtitanRibbon 4.12.0 in folder .\Demos\RibbonApplication\External Dependencies\QTitanRibbon

