类型“CFStringRef”不符合 Xcode 6.1 中的协议“Hashable”

在我的应用程序中，我有一个在 Xcode 6 中工作的钥匙串访问类，但现在在 Xcode 6.1 中我收到一些错误，这是第一个错误：类型“CFStringRef”不符合协议“Hashable”：

private class func updateData(value: NSData, forKey keyName: String) -> Bool {
    let keychainQueryDictionary: NSMutableDictionary = self.setupKeychainQueryDictionaryForKey(keyName)

    let updateDictionary = [kSecValueData:value] //HERE IS THE ERROR

    // Update
    let status: OSStatus = SecItemUpdate(keychainQueryDictionary, updateDictionary)

    if status == errSecSuccess {
        return true
    } else {
        return false
    }
}

我还收到与第一个类似的错误，但它是：类型“CFStringRef”不符合协议“NSCopying”这里是我收到此错误的部分：

private class func setupKeychainQueryDictionaryForKey(keyName: String) -> NSMutableDictionary {
    // Setup dictionary to access keychain and specify we are using a generic password (rather than a certificate, internet password, etc)

    var keychainQueryDictionary: NSMutableDictionary = [kSecClass:kSecClassGenericPassword] 

    // HERE IS THE ERROR ↑↑↑

    // Uniquely identify this keychain accessor
    keychainQueryDictionary[kSecAttrService as String] = KeychainWrapper.serviceName

    // Uniquely identify the account who will be accessing the keychain
    var encodedIdentifier: NSData? = keyName.dataUsingEncoding(NSUTF8StringEncoding)

    keychainQueryDictionary[kSecAttrGeneric as String] = encodedIdentifier
    keychainQueryDictionary[kSecAttrAccount as String] = encodedIdentifier

    return keychainQueryDictionary
}

有人可以告诉我如何解决这些错误吗？

CFStringRef桥接于NSString这是桥接的String。最简单的解决方案就是强制转换kSecValueData and kSecClass to Strings or NSStrings:

Here:

let updateDictionary = [kSecValueData as String: value]

和这里：

var keychainQueryDictionary: NSMutableDictionary = [kSecClass as NSString: kSecClassGenericPassword]