Provides a container of all Revit built-in FailureDefinitionId instances. 
 
The BuiltInFailures MassFailures type exposes the following members.
Properties
| Name | Description | |
|---|---|---|
|     | AutoGlazingFailed |  Failure in Auto-Glazing region computation.  | 
|     | AutoGlazingFailedError |  Failure in Auto-Glazing region computation.  | 
|     | BooleanUnionFailed |  Failed to merge overlapping solids  | 
|     | CannotIntegrate |  In order to restore an element's 'Constrain to Massing' property to 'Dependent', it must be in the main model with the massing.  | 
|     | CannotMergeGeometry |  The Mass contains geometry that cannot be combined. Mass Floors, volume, and surface area, won't be computed.  | 
|     | CannotMoveMassing |  Can't move whole Massing. Move the elements within the Massing instead.  | 
|     | CreateCoreGeometryFailed |  Failed to create core geometries.  | 
|     | DividePerimeterZoneFailed |  Failed to divide perimeter zone.  | 
|     | FaceRegionCreationFailed |  Failure in face region creation.  | 
|     | FaceSplitFailed |  A face of a joined (i.e. one cuts another) mass could not be split into interior and exterior faces. Remove the cut to resolve.  | 
|     | FloorAreaFaceFailed |  Failed to create a Mass Floor.  | 
|     | FloorMightLookWrong |  Mass Floors may appear incorrect since the Mass contains mesh and solid geometry.  | 
|     | MinSkylightWidthImperial |  The minimum skylight width is 8 inches.  | 
|     | MinSkylightWidthMetric |  The minimum skylight width is 203.2 millimeters.  | 
|     | MultipleMassing |  Can't complete operation. Massing can only exist in one Workset. Change Workset of Massing to match in Local and Central Models.  | 
|     | NoCurtainRoofsInMassing |  Massing cannot be created with a curtain roof. Please change the default roof type and try again.  | 
|     | NonOccupiableMassZone |  For mass zone, if the bottom level ref does not intersect, then this zone is going to be "not occupiable" and a warning is posted for it.  | 
|     | NoSolidInMass |  Mass contains no solid geometry. Mass Floors, volume, and surface area, won't be computed.  | 
|     | OpenAndSolidGeometry |  Mass contains both solid and mesh geometry. Mass Floors, volume, and surface area, may appear incorrect.  | 
|     | OpenGeometryOnly |  Mass contains only mesh geometry, which can't be used to compute Mass Floors, volume, or surface area.  | 
|     | OverlappingSolids |  Found volumetric overlap between solids. They will be merged into one  | 
|     | SketchCurveNotModelable |  This action cannot be completed. An element created by massing has a sketch line that cannot be modeled.  | 
|     | SplitFacesByGroundPlaneCrashed |  Failed to split face by ground plane.  | 
|     | SplitFacesByGroundPlaneFailed |  Failed to split face by ground plane.  | 
|     | SplitOverlappingFacesFailed |  Failed to resolve all overlaps between faces of the same Mass Energy Analytical Model.  | 
|     | TooManyGeometries |  The geometry in this Mass instance is too complex to take advantage of the capabilities a Mass provides. Please break it down into multiple Mass and family instances that are less complex.  | 
|     | UpgradedMassingWarning |  Your document contained a Massing element which has been upgraded to a Mass instance. Please review the documentation on the new enhanced Mass capabilities to understand the implications of this change.  |