> ## 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`. |