This Subregion now does not appear to overlap any Toposurface with an appropriate Phase and Design Option.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 26.1.0.0 (26.1.0.34)
Syntax
C#
public static FailureDefinitionId NoHostForSubregionWarn { get; }