Hi Conor, Yes, chatGPT helped me to identify that the #endif should be before the class end bracket. I had a few more similar issues with EditorDestroy and EditorApplication in the FluidFlow script and they needed to be put into #if UNITY_EDITOR blocks. One other thing is that a few items in the Resources folder such as ao small logo.png had to be reimported because HideFlags.DontSave was still in a script. There were two such items but i don't remember the second one. In the end, I was able to build!

Conor, I am getting build errors on the three scripts with the #if UNITY_EDITOR blocks of code. When I removed them, I get the same errors that @skaughtx0r was getting. Any suggestions?

Thanks for the reply - it's very helpful and now that you say that, I remember in one of your videos that you said something to this effect. I was preparing to try to write some code to create cube primitives to match the meshes, but based on your advice, that's overkill!

Thanks for the quick reply! I'll be trying it out over the weekend and let you know how I make out. I was thrilled to find your asset!

I have the same question! Can you provide more information? I'd like to try to replicate the AO Spinning Cylinder Custom Fluid Effector Demo with different shapes, like an airfoil. I tried using the code Conor provided, but I don't have a FluidZone or VelocityFunction that's needed for the script Conor posted to run. Help?