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January 29, 2010

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Hi Jeremy. I´m using FindReferenceByDirection (revit 2011) to find the face of ceiling to place a ligthing fixture, but when I try to create the FamilyInstance gives an error "Planarface is null if you used GeometryObject make sure to use Computereferences", but the planarface isn´t null.

My workaround is to get the ceiling from the reference and search each face again to get a valid Planarface.
Can you give an advice about this?

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Jeremy Tammik

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