---
title: MTLLibraryErrorDomain
framework: metal
role: symbol
role_heading: Global Variable
path: metal/mtllibraryerrordomain
---

# MTLLibraryErrorDomain

The error domain for Metal libraries.

## Declaration

```swift
let MTLLibraryErrorDomain: String
```

## See Also

### Errors

- [MTLLibraryError](metal/mtllibraryerror-swift.struct.md)
- [MTLLibraryError.Code](metal/mtllibraryerror-swift.struct/code.md)