> For the complete documentation index, see [llms.txt](https://docs.yarnspinner.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.yarnspinner.dev/2.0/api/csharp/yarn/yarn.dialogueexception.md).

# DialogueException

Class in [Yarn](/2.0/api/csharp/yarn.md)

Inherits from `System.Exception`

## Summary

An exception that is thrown by [Dialogue](/2.0/api/csharp/yarn/yarn.dialogue.md) when there is an error in executing a [Program](/2.0/api/csharp/yarn/yarn.program.md) .

```csharp
public class DialogueException : System.Exception
```