I have just updated the “NodeCanvas Slate” integration.
Regarding MotionController, I am not the author of the integration to update, but the update should be easy.
You can just do a “Search and Replace” in all files:
From this:EditorUtils.BBParameterField To this:NodeCanvas.Editor.BBParameterEditor.ParameterField
This should work and update all errors I see in screenshot.
Let me know if you have trouble with that.
Thanks!