Add cloth and runtime

[renderlux]

I'm trying to add ObiSkinnedCloth and reference skinnedClothBlueprint 

var gameObj = meshObject.AddComponent<ObiSkinnedCloth>();
gameObj.skinnedClothBlueprint = ScriptableObject.Instantiate(SourceBlueprint.instance.sourceTop);
meshObject.AddComponent<ObiSkinnedClothRenderer>();


But I'm getting 

NullReferenceException: Object reference not set to an instance of an object

I believe the problem is:

gameObj.skinnedClothBlueprint = ScriptableObject.Instantiate(SourceBlueprint.instance.sourceTop);