Weather & Ocean Water Shader export to other project problem <Need Help pls>>

Hay, i’m trying to export all the files used in the known community project Weather & Ocean Water Shader to my own project to use the oceanBP,but i get an error telling me: <the error message is:Blueprint could not be loaded because it derives from an invalid class. Check to make sure the parent class for this blueprint hasn’t been removed! Do you want to continue (it can crash the editor)?> So is there an easy way to make the oceanBP exported to other project and work just fine,because i really need it.thank you.And if there is any tutorials on how to use the ocean water shader on my own project pls let me know.
This is the ocean project,i need to know how to migrate the contents to my own project without errors:GitHub - UE4-OceanProject/OceanProject: Environment Plugin Project (Ocean Simulation, Sky Simulation,