# Copier_GrainExtensionNotInstalledException

Package: [Microsoft.Orleans.Core.Abstractions](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/) 10.0.0

[NuGet package](https://www.nuget.org/packages/Microsoft.Orleans.Core.Abstractions)

```csharp
public sealed class Copier_GrainExtensionNotInstalledException : ExceptionCopier<GrainExtensionNotInstalledException, OrleansException>
```

Default copier implementation for (rarely copied) exception classes

## Constructors

- [Copier_GrainExtensionNotInstalledException(ICodecProvider)](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleanscodegen.orleans.runtime.copier-grainextensionnotinstalledexception/constructors/constructor-orleans-serialization-serializers-icodecprovider-0d17d6c0/)