The following NetBeans projects for JavaFX samples have platform.active=JDK_1.6__Default_ . The entry should be platform.active=default_platform:

- DataAppLibrary
- DataAppLoader
- DataAppServer

The result is that a "Reference Problem" warning appears when any of the above projects are opened in NetBeans 7.1 RC1 2011-11-24. If the user selects the "Resolve Problems..." button on that warning box and then selects "Resolve..." on the next step, NetBeans presents the Java Platform Manager, where the user can select the "JDK 1.6 (Default)" platform. This selection resolves the reference problem.