You are removing an element from the group which is involved in a sketch or family constraint with another element of the same group. Either remove the constraint or cancel the removal of this element from the group.

public static FailureDefinitionId RemoveGroupSketchConstraintParent { get; }

Public Shared ReadOnly Property RemoveGroupSketchConstraintParent As FailureDefinitionId
	Get

public:
static property FailureDefinitionId^ RemoveGroupSketchConstraintParent {
	FailureDefinitionId^ get ();
}