# DataNotAvailableException

Package: [Microsoft.Orleans.Streaming](/orleans/docs/api/csharp/microsoft.orleans.streaming/) 10.0.0

[NuGet package](https://www.nuget.org/packages/Microsoft.Orleans.Streaming) | [Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Streaming/QueueAdapters/DataNotAvailableException.cs#L12)

```csharp
[Orleans.GenerateSerializer]
public class DataNotAvailableException : OrleansException
```

Exception indicates that the requested data is not available.

## Constructors

- [DataNotAvailableException](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.datanotavailableexception/constructors/constructor-db17de41/)
- [DataNotAvailableException(string)](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.datanotavailableexception/constructors/constructor-string-31c11eb3/)
- [DataNotAvailableException(string, Exception)](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.datanotavailableexception/constructors/constructor-string-system-exception-b74222a0/)