I have a pretty large scene in Rhino (exported and cleaned up from Revit) that I am analyzing in Grasshopper. When I connected the referenced geometry to the material component, I get the following error:

1. Solution exception:Object reference not set to an instance of an object.

It is only happening for some of the components; the others work fine. I have tried using a new component, referencing less geometry for each component (there are a large  number of objects for each material), rebuilding bad surfaces, etc. but nothing seems to work. I have used this definition before to analyse other models with no problem.

Any idea what could be causing the issue?

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Hi Eliot,

Not sure what is happening from the image- maybe try passing the geometry through a clean component before connecting to the material component? Could you package a smaller rhino and grasshopper file with just one material component throwing the error and email it to me- info@solemma.net

Jeff

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