ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Framework Namespace / AddInInfo Class / ErrorMsg Property

ErrorMsg Property
Gets and sets error messages reported during processing of the add-in.
Syntax
public string ErrorMsg {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.4 or higher.
See Also