The include gives me the error “cannot open source file "BuoyancyComponent.h”. The Water plugin is installed. And I can add buoyancy to an pawn in blueprint. I can see the Water plugin in the experimental folder. What more do I need to do?
I added “Water” to PublicDependencyModuleNames in MyGame.Build.cs
I also had to delete the Binaries and Intermediate folders and then “Generate Visual Studio Project files” for it to work properly (for other who might read this in the future)