> ## 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.

# SignatureError

> Swift Enumeration

**Enumeration**

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

## Enumeration Cases

### SignatureError.approvalFailed

```swift theme={null}
case approvalFailed
```

### SignatureError.creationFailed

```swift theme={null}
case creationFailed
```

### SignatureError.decodingError

```swift theme={null}
case decodingError
```

### SignatureError.networkError

```swift theme={null}
case networkError
```

### SignatureError.serviceError(\_:)

```swift theme={null}
case serviceError(CrossmintServiceError)
```

### SignatureError.unknown

```swift theme={null}
case unknown
```

### SignatureError.userCancelled

```swift theme={null}
case userCancelled
```

## Instance Properties

### code

Inherited from `CrossmintError.code`.

```swift theme={null}
var code: String { get }
```

### message

Inherited from `CrossmintError.message`.

```swift theme={null}
var message: String { get }
```

### underlyingError

Inherited from `CrossmintError.underlyingError`.

```swift theme={null}
var underlyingError: (any Error)? { get }
```