Material errors

while i try to put any material i get this error

any one help please ?

Which 3D modeling program did you use to create the model? See this answer that explains how to address the missing UV mapping issue with SketchUp: Can't change model's color - #2 by wojtek

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i use 3d max program for 3D modeling

With 3ds Max, similarly to SketchUp, you need to ensure that the material used by these objects (Line001, Line 015, etc.) already has some texture set in the 3ds Max before the scene is exported to Shapespark, otherwise the UV will not be exported and Shapespark editor will not be able to apply new textures.

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