Arnold MEL script error

[Anonymous]

Hi everyone,

I'm in the middle of working on a new environment for my portfolio. So I was creating a chrome material for one of my object and I wanted to see how it would look with lights on. But when I open the render settings this is what happened. Nothing it's shown on the window to be able to change the render settings. Thank you for any help I can get.

# Error: line 1: IndexError: file C:\solidangle\mtoadeploy\2017\scripts\mtoa\ui\ae\customShapeAttributes.py line 932: list index out of range #
# Error: line 1: MelError: file C:\Program Files\Autodesk\Maya2017\Python\lib\site-packages\pymel\core\language.py line 992: Error during execution of MEL script: line 1: IndexError: file C:\solidangle\mtoadeploy\2017\scripts\mtoa\ui\ae\customShapeAttributes.py line 932: list index out of range
Script:
createArnoldRendererCommonGlobalsTab #

[Stephen.Blair]

So the Render Settings window is blank?

That's usually a scene-specific problem. The defaultArnoldRenderOptions node in that scene is broken.

First, try this:
- Restart Maya
- Open the Arnold Render Settings. That creates a defaultArnoldRenderOptions node.
- Try again to open the scene

If you still get the same errors, then do you have these four nodes in the scene?

- defaultArnoldRenderOptions
- defaultArnoldDriver
- defaultArnoldFilter
- defaultArnoldDisplayDriver

You can check in the Outliner, just clear Display > DAG Objects Only

If so, then try this:

- close the Render Settings dialog
- delete those four nodes
- save the scene (with a new name)
- restart Maya
- load the scene you just saved

[Anonymous]

Thank you!,

I ended up exporting everything as a fbx file and importing it back in and that worked. But if I encounter the same problem in the future I will follow your instructions for sure.