As a result of Reloading Latest, there are no Levels left. Create a new Level, and then Reload Latest again.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 26.4.0.0 (26.4.0.0)
Syntax
C#
public static FailureDefinitionId NoLevelsLeftReloading { get; }