/Users/Shared/Work/FriedSynapse/Unity/Scátháin/Packages.Custom/FlowEnt/Editor/Builders/Models/MaterialBuilderPropertyDrawer.cs(61,13): warning CS0618: 'ShaderUtil.ShaderPropertyType' is obsolete: 'Use UnityEngine.Rendering.ShaderPropertyType instead.'

[danieltranca]

Just open in unity 6.3 and fix everything