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# MTLLibraryError

Metal errors related to libraries.

```
struct MTLLibraryError
```

## Topics

### Errors

[`unsupported`](/documentation/Metal/MTLLibraryError-swift.struct/unsupported)

Metal couldn’t support the requested action.

[`internal`](/documentation/Metal/MTLLibraryError-swift.struct/internal)

The action caused an internal error.

[`compileFailure`](/documentation/Metal/MTLLibraryError-swift.struct/compileFailure)

The library or function failed to compile.

[`compileWarning`](/documentation/Metal/MTLLibraryError-swift.struct/compileWarning)

The library or function compiled successfully but generated warnings.

[`fileNotFound`](/documentation/Metal/MTLLibraryError-swift.struct/fileNotFound)

Metal couldn’t find the Metal source file.

[`functionNotFound`](/documentation/Metal/MTLLibraryError-swift.struct/functionNotFound)

Metal couldn’t find the specified Metal function.

### Error domain

[`errorDomain`](/documentation/Metal/MTLLibraryError-swift.struct/errorDomain)

The error domain used by Metal when returning library or function creation errors.


---

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