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  "title" : "Mesh Error Handling"
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# Mesh Error Handling

Strings used when handling <doc://com.apple.documentation/documentation/Foundation/NSError> messages returned from a mesh initialization method.

## Topics

### Constants

[`static let domain: MTKModelError`](/documentation/MetalKit/MTKModelError/domain)

The error domain used by MetalKit when returning mesh initialization errors.

[`static let key: MTKModelError`](/documentation/MetalKit/MTKModelError/key)

The key used to retrieve an error string from an error object’s <doc://com.apple.documentation/documentation/Foundation/NSError/userInfo> dictionary.


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