> ## Documentation Index
> Fetch the complete documentation index at: https://docs.crossmint.com/llms.txt
> Use this file to discover all available pages before exploring further.

# CheckoutError

> Swift Enumeration

**Enumeration**

```swift theme={null}
enum CheckoutError
```

## Enumeration Cases

| Case | Description |
| - | - |
| `invalidConfiguration(_:)` | - |
| `legacyAPIKey` | - |
| `malformedAPIKey` | - |
| `missingAPIKey` | - |
| `notImplemented(_:)` | - |
| `serverAPIKey` | - |

## Instance Properties

| Property | Type | Description |
| - | - | - |
| `errorDescription` | `String?` | Inherited from `LocalizedError.errorDescription`. |