# UnknownAngleKindException class

Namespace: [Grasshopper2.Types.Numeric](https://developer.rhino3d.com/api/gh2/namespace/grasshopper2.types.numeric.md) · Assembly: [Grasshopper2](https://developer.rhino3d.com/api/gh2/assembly/grasshopper2.md)

```cs
public sealed class UnknownAngleKindException : InvalidCastException
```

Thrown when an unknown angle kind is encountered.

## Constructors

- [UnknownAngleKindException](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.numeric.unknownanglekindexception/ctor.md): Create a new UnknownAngleKindException exception for a specific kind.