我正在youtube上学习一些快速的3个以下课程.我编写的代码用于创建用户帐户并在Firebase数据库中存储详细信息.在测试时,我可以直到提交注册表单.然后我收到以下错误:
[Generic] Creating an image format with an unknown type is an error.
Fatal Error: unexpectedly found nil whilst unwrapping an Optionional value.
我在下面的代码块中突出显示了以下行:
exc_bad_instruction(code=exc_i386_invop subcode=0x0)
以下是我的代码.我已经突出显示了抛出异常的位置.任何援助将不胜感激.
import UIKit
import Firebase
class Signup_ViewController: UIViewController,
UIImagePickerControllerDelegate, UINavigationControllerDelegate {
// Input data fields for signup form
@IBOutlet weak var usernameField: UITextField!
@IBOutlet weak var emailField: UITextField!
@IBOutlet weak var nameField: UITextField!
// Password data field for signup form
@IBOutlet weak var passwordField: UITextField!
@IBOutlet weak var confirmPasswordField: UITextField!
// Next button for …