LWRP - cannot override inherited member 'BaseShaderGUI.ShaderPropertiesGUI(Material)

Hi,

I faced some problem after upgraded to 2019 with latest version of LWRP, then I faced this particular error when trying to override ShaderPropertiesGUI function

error CS0506: 'TCP2_MaterialInspector_LWRP_SG.ShaderPropertiesGUI(Material)': cannot override inherited member 'BaseShaderGUI.ShaderPropertiesGUI(Material)' because it is not marked virtual, abstract, or override

Base on the documentation(https://docs.unity3d.com/Packages/c...weight@4.0/api/UnityEditor.BaseShaderGUI.html), the ShaderPropertiesGUI is a virtual function which is overrideable, but seem like there some problem with latest LWRP version

Thanks.

 

Up.
The metadata for BaseShaderGUI give this:

public abstract class BaseShaderGUI : ShaderGUI
{
....
public void ShaderPropertiesGUI(Material material);
....

How can a non-defined method not be marked abstract? That seems like wrong C# to me..