[Paraview] what's wrong with it

[胡健]

hello all: I want to add vtkOpenGLHAVSVolumeMapper to paraview as a plugin!
here is my xml file: when I run paraview and load the plugin and open a
data, the program will give me an error message

"ERROR: In
..\..\..\ParaView-3.8.1\Servers\ServerManager\vtkSMProxyManager.cxx, line
369 vtkSMProxyManager (0BC34AB8): No proxy that matches: group=mappers and
proxy=OpenGLHAVSVolumeMapper were found.

ERROR: In ..\..\..\ParaView-3.8.1\Servers\ServerManager\vtkSMProxy.cxx, line
1979 vtkSMSourceProxy (13476AF0): Base interface cannot be found.".

anybody know what's wrong with it?any help will be appreciate! thank you!
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