Provides a container of all Revit built-in FailureDefinitionId instances. 
 
The BuiltInFailures FamilyFailures type exposes the following members.
Properties
| Name | Description | |
|---|---|---|
|     | CannotAddParameterToFamily |  Parameter '[Parameter]' cannot be added to the family.  | 
|     | CannotChangeCategory |  Can't change category of Family Instance  | 
|     | CannotChangeInstFam |  Can't change Instance's Family. Try changing Instance's Host to a Level first.  | 
|     | CannotConvertInstHostToWorkPlane |  Can't convert Instance's Host to Work Plane. Try resetting Host to a Level.  | 
|     | CannotConvertInstWorkPlaneToHost |  Can't convert Instance's Work Plane to Host. Try resetting Work Plane to a Level.  | 
|     | CannotCopyByPatternFamilies |  Can't copy between Mass or Curtain Panel by Pattern families, and other families or Revit projects.  | 
|     | CannotCopyInplaceFamily |  In-place family groups cannot be copied between in-place families of the same project.  | 
|     | CannotCutRefPlane |  Can't cut reference plane.  | 
|     | CannotFindHost |  Couldn't find an appropriate Host. Try selecting a different Host Face or switch Placement Mode.  | 
|     | CannotLoadImperialFamilyToMetricProject |  Can't load an imperial Family into a metric Project.  | 
|     | CannotLoadMetricFamilyToImperialProject |  Can't load a metric Family into an imperial Project.  | 
|     | CannotMakeType | |
|     | CannotMakeTypeCB |  Can't make type "[Family Name]".  | 
|     | CannotMakeTypeFamilySaved |  Can't make type "[Family Name]". Failing family has been saved to "[File Name]"  | 
|     | CannotPasteLabelsAcrossFamilies |  Can't paste Labels across Families of different Categories.  | 
|     | CannotPasteObject |  Can't paste some or all of the selected objects.  | 
|     | CannotRegenerateCorruptFamily |  Family [Family Name] is corrupt and its instances cannot be updated. Please reload the family to repair the project..  | 
|     | CannotRotateElement |  Can't rotate element into this position.  | 
|     | CannotSetFamilyTypeToNone |  Cannot set Family Type to 'None';.  | 
|     | CannotUnlockFamilyTemplate |  Can't unlock alignments from Family Template.  | 
|     | CantCopySelectionToNonStory |  Can't copy this selection to a non-story Level.  | 
|     | CantEditWhileGrouped |  You may not edit this parameter while the element is grouped.  | 
|     | CantMirrorInstWoHost |  Can't mirror an instance without its host.  | 
|     | CantMoveFrozenInstance |  A family instance placed on a curved surface of a linked file can't be moved while the link is unloaded. To move the instance, reload the link or rehost the instance.  | 
|     | CantPasteSelection |  Can't paste selection.  | 
|     | CantPlaceATOnDuctError |  The air terminal cannot be placed in an elevation or section view unless it is attached to a duct.  | 
|     | CantPlaceInsertsError |  Can't place inserts outside of hosts. These elements won't be copied.  | 
|     | CantPlaceInsertsWarning |  Can't place inserts outside of hosts. These elements won't be copied.  | 
|     | CantPlaceInstanceError |  Can't place instance of [Symbol]  | 
|     | CantPlaceInstanceWarning |  Can't place instance of [Symbol]  | 
|     | CantSetSlantedColumnEndPlane |  Unable to determine slanted column end cut plane.  | 
|     | CantSolve |  Can't find solution for formulas for Type '[Type Name]'.  | 
|     | CircularRefsForInstParams |  "Instance parameter '%1!s!' generates circular references."  | 
|     | ColumnAlreadyAttachedWillBeReattached |  The column is already attached. It will be detached and attached to the new target.  | 
|     | ColumnAndTargetAlreadyJoined |  The column and target are joined, remove that join before attaching them.  | 
|     | ColumnHeightZeroBecauseOfInvalidOffset |  Change Offset Value so that Column height is not 0.0.  | 
|     | ColumnTooLong |  This column is too long. Maximum length is 30,000 ft.  | 
|     | ContainsSharedSameNameFamily |  Family '[Family Name]' contains a shared family of the same name. Please rename one of the two families before loading!  | 
|     | CouldNotGenerateReferencesForFamilyInstance |  Could not generate references for Family Instance.  | 
|     | CouldNotPlaceAdaptiveFamInst |  Could not place Adaptive Family Instance.  | 
|     | CustomFittingCreated |  Custom fitting was created.  | 
|     | DeletingBadFamElemCorruption |  Family contains invalid elements. They will be deleted.  | 
|     | DeletingBadFamElemError |  Family contains invalid elements. They will be deleted.  | 
|     | DeletingBadFamType |  Can't make type "[Family Name]". It will be deleted.  | 
|     | DeletingBadFamTypeDumped |  Can't make type "[Family Name]". It will be deleted. Failing family has been saved to "[File Name]"  | 
|     | DummyHostMustBePerpendicularToXY |  Dummy host must be perpendicular to Z or Y axis.  | 
|     | DuplicateFamilyParameterNameWithSharedParameter |  Parameter '[Parameter]' has the same name with an existing shared parameter.  | 
|     | DuplicateParamName |  Family parameters have duplicate names.  | 
|     | DuplicateTypeName |  "Ignoring attempt to add family type '%1!s!' for a second time."  | 
|     | ElementTypeParameterized |  The type(s) of the selected element(s) are driven by family parameter(s). Changing the type directly will break the association.  | 
|     | FailedToBecomeNonParametric |  Family failed to become non-parametric!  | 
|     | FailedToSetParameters |  Failed to apply family parameters.  | 
|     | FailedWhenLoadingFamily |  Some unlocked labeled dimensions prevent family from loading. Please try to lock unlocked labeled dimensions and load again.  | 
|     | FamilyBadUnattachedVoids |  Family '[Family Name]' contains unattached voids that can't be combined for cutting. Try fixing the voids or unset the Cut with Voids parameter in the family.  | 
|     | FamilyCannotBeUpgraded |  "Family '[Name]' cannot be upgraded and must be deleted. To fix the file in the older version of Revit, try loading newer versions of these families: [Names]."  | 
|     | FamilyConnectorDeletedError |  The family Connector has been modified so the connection is invalid.  | 
|     | FamilyConnectorDeletedWarning |  The family Connector has been modified so the connection is invalid.  | 
|     | FamilyDoesntMatchSystemPropertiesDisconnected |  The family no longer matches the properties for the System. Disconnect the family from the System?  | 
|     | FamilyIsCorruptError |  Some families have become unusable. Reload the families, or delete them from the model.  | 
|     | FamilyIsCorruptWarning |  Some families have become unusable. Reload the families, or delete them from the model.  | 
|     | FamilyMembersReferToOutsideFamily |  Memebrs of Family '[Name]' or a nested family thereof illegally refer to Elements outside the family.  | 
|     | FamilyNoExternalParametersError |  Family's Category can't be changed because the Family contains Shared Parameters which are not permitted in the new Category.  | 
|     | FamilyNoExternalParametersWarning |  Family's Category can't be changed because the Family contains Shared Parameters which are not permitted in the new Category.  | 
|     | FamilyNotFitHostShape |  The host shape has changed and the family is no longer appropriate.  | 
|     | FamilyOverconstraint |  Dimension overconstrains the Family. Cannot set Family Type to <None>.  | 
|     | FamilyOverconstraintCB |  Dimension overconstrains the Family.  | 
|     | FamilyParameterNoExist |  The parameter [Name] doesn't exist in the Family. It will be ignored.  | 
|     | FamilyValidationResult |  Family Validation Warning(s): [Description]  | 
|     | FormulaBasedParameterCannotBeChanged |  Parameter '[Caption]' cannot be changed because it is defined by formula '[Formula]'  | 
|     | FormulasFailedForType |  "Can't satisfy formulas for type [Family Symbol].  | 
|     | FrozenBecauseFaceGone |  This family instance was hosted by a curved face that is no longer present in the linked file. To move the family instance, rehost it.  | 
|     | FrozenBecauseMonitorRelationshipGone |  The position of this element was determined by copy/monitor but the monitor relationship has been removed. To move this instance, use pick new host to select a valid host.  | 
|     | HighlightedElementFamRefsInvalidError |  One or more references of the highlighted element have become invalid.  | 
|     | HighlightedElementFamRefsInvalidWarning |  One or more references of the highlighted element have become invalid.  | 
|     | InstMayCutMoreOrFewerHosts |  Insert may be cutting fewer or more hosts than needed. The problem may be solved by forcing regeneration, e.g. by moving the insert out and back by a tiny distance in any direction.  | 
|     | InstOutsideFaceBoundary |  Instance origin does not lie on host face. Instance will lose association to host.  | 
|     | InvalidContextForAdaptivePlacement |  The component '%1!s!' cannot be directly placed in the project environment. Place it in either an In-Place Mass, a Conceptual Mass Family, a Curtain Panel by Pattern Family, or an Adaptive Component.  | 
|     | InvalidFamilyType |  Invalid family type "[Type Name]".  | 
|     | InvalidFormularFoundInParameter |  Invalid formular found in parameter '[Param Name]' in type '[Type Name]'.  | 
|     | InvalidInsertOrientation |  The insert orientation is incompatible with the wall's cross-section.  | 
|     | InvalidParameterValue |  Parameter [Caption] has an invalid value.  | 
|     | InvalidSlantedColumnOffsets |  The column's base (Base Level + Base Offset) must be below its top (Top Level + Top Offset).  | 
|     | InvalidSlantedColumnOffsetsInNestedFamily |  Instance of family [Family Name] can't be updated because in nested family the column's base (Base Level + Base Offset) must be below its top (Top Level + Top Offset).  | 
|     | MightntPlaceInsertsWarning |  There exist geometry collision. These elements might not be copied.  | 
|     | NoInstparamFormulas |  Instance Parameters can't be used in Type Parameter formulas.\n\n[Description]  | 
|     | NonGenericAnnotationsOutsideLegend |  Only Generic Annotations may be copied between Legends and other Views  | 
|     | NotFamilyFile |  The selected file is not a Family File.  | 
|     | ProfileContainsNoLoops |  Profile type '[Family Symbol]' contains no loops.  | 
|     | ReferencePlanesOverconstrained |  Reference Planes are overconstrained.  | 
|     | SetbackTooLarge |  Setback computations are too large for this element.  | 
|     | SharedParameterReplacedByBuiltInOne |  Shared parameter [Name] will be replaced by a built-in parameter with the same name. This may affect scheduling!  | 
|     | SizeLookupTableIsNotAvailableForType |  Size Lookup Table is not available for type [Family Symbol].  | 
|     | SketchCannotBeAutomaticallyDimensioned |  Sketch can't be Automatically Dimensioned - this is a prerequisite for Labeled Dimensions to work properly.  | 
|     | SlantedColumnEndCutPlaneIsParallelToGeometry |  Cut plane of slanted column end is parallel to the location curve.  | 
|     | SlantedColumnEndPlanesHaveFlipped |  Position of end cut planes has resulted in a slanted column without any geometry.  | 
|     | StructuralColumnAttachedToNonStructuralTarget |  The structural column is attached to a non-structural target.  | 
|     | TitleblockBadViewType |  Titleblocks can only be placed on sheets.  | 
|     | TryingToAttachWhenJoined |  The column and target are joined. The attachment has been removed.  | 
|     | TypeRecursiveElementIdParameter |  Type's parameter cannot recursively point to the type itself.  | 
|     | UnableGenerateTrussByFamilyAndOrientation |  Revit is unable to generate a truss using the current Layout Family and Truss orientation.  | 
|     | UnableToUpgradeDueToCorruptFamilies |  Some families have become unusable. Reload the families, or delete them from the model.  | 
|     | UnexpectedFamilyChangeResultsError |  Changing the family for a MEP fitting might cause unexpected results.  | 
|     | UnexpectedFamilyChangeResultsWarning |  Changing the family for a MEP fitting might cause unexpected results.  | 
|     | ValueOutOfRange |  The value must be from 0.0 to 1.0  | 
|     | WhileLoadingFamily |  While loading family '[Family Name]': [Description]  | 
|     | WhileLoadingFamilyShared |  While loading shared family '[Family Name]' from family '[Family Name]': [Description]  | 
|     | WhileScanningParametersForType |  While loading Type '[Name]', parameter '[Name]': [Description]  |