The selected wall type/shape isn't supported for attaching a wall to a stair. To continue, detach the wall from the stairs' components.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 21.0.0.0 (21.1.1.109)

Syntax

C#
`public static FailureDefinitionId WallTypeUnsupportedError { get; }`

Visual Basic
`Public Shared ReadOnly Property WallTypeUnsupportedError As FailureDefinitionId Get`

Visual C++
`public: static property FailureDefinitionId^ WallTypeUnsupportedError { FailureDefinitionId^ get (); }`

See Also