# GH_BracketMismatchException class

Namespace: [Grasshopper.Kernel.Data](https://developer.rhino3d.com/api/gh1/namespace/grasshopper.kernel.data.md) · Assembly: [Grasshopper](https://developer.rhino3d.com/api/gh1/assembly/grasshopper.md)

```cs
public class GH_BracketMismatchException : Exception
```

Exception used during Rule Set parsing.

## Constructors

- [GH_BracketMismatchException](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.data.gh-bracketmismatchexception/ctor.md): (3 overloads)

## Properties

- [Index](https://developer.rhino3d.com/api/gh1/type/grasshopper.kernel.data.gh-bracketmismatchexception/index.md)