Returns the reason for the error in plain text.
You should avoid using this function directly - the ExpressionEvaluator Class offers you a much more powerful way to work with expressions.
The function must be called straight after LlExprParse() returned an error.
Platforms: Windows 10, Windows 11, Windows Server 2016 - 2025
.NET: .NET Framework 4.8, .NET 10, .NET 11