Highlighted wall is set to be "From roof", however there is no roof below it that can be used.
Namespace: Autodesk.Revit.DBAssembly: RevitAPI (in RevitAPI.dll) Version: 26.4.0.0 (26.4.0.0)
Syntax
C#
public static FailureDefinitionId NoFromRoofForWall { get; }Property Value
FailureDefinitionId
See Also
Reference