ios – Firebase 3.2.0 – 创建用户的内部错误

我刚刚使用Firebase 3.2.0启动了一个新项目( Swift 2.2; iOS 9; Xcode 7.3.1),并在输入无效的电子邮件和弱密码时,在我的授权/注册过程中遇到以下错误：

NSError

Error Domain=FIRAuthErrorDomain Code=17999 "An internal error has occurred,print and 
inspect the error details for more information." UserInfo={error_name=ERROR_INTERNAL_ERROR,NSUnderlyingError=0x7c0549a0 {Error Domain=FIRAuthInternalErrorDomain Code=3 "(null)" 
UserInfo={FIRAuthErrorUserInfoDeserializedResponseKey=<CFBasicHash 0x7c04bd90 [0x1a701f8]>
{type = immutable Dict,count = 3,entries =>
0 : <CFString 0x7c0fb0c0 [0x1a701f8]>{Contents = "errors"} = 
<CFArray 0x7c0713a0 [0x1a701f8]>{type = immutable,count = 1,values = (
0 : <CFBasicHash 0x7c0fac00 [0x1a701f8]>{type = immutable Dict,entries =>
0 : <CFString 0x7c051080 [0x1a701f8]>{Contents = "reason"} = 
<CFString 0x7c0553f0 [0x1a701f8]>{Contents = "invalid"}
1 : <CFString 0x7c055f30 [0x1a701f8]>{Contents = "message"} = 
<CFString 0x7c061580 [0x1a701f8]>{Contents = "INVALID_EMAIL"}
2 : <CFString 0x7c054fd0 [0x1a701f8]>{Contents = "domain"} = 
<CFString 0x7c060290 [0x1a701f8]>{Contents = "global"}
}

)}
1 : <CFString 0x7c05aae0 [0x1a701f8]>{Contents = "code"} = 
<CFnumber 0x7c073010 [0x1a701f8]>{value = +400,type = kcfnumberSInt64TypE}
2 : <CFString 0x7c067e70 [0x1a701f8]>{Contents = "message"} = 
<CFString 0x7c0543a0 [0x1a701f8]>{Contents = "INVALID_EMAIL"}
}
}},NSLocalizedDescription=An internal error has occurred,print and inspect the error 
details for more information.}

……我的代码如下……

AuthViewController.swift

if let email = emailField.text where email != "",let password = passwordField.text where 
  password != "" {FIRAuth.auth()?.signInWithEmail(email,password: password) { (user,error) in
    if let error = error {
            if let errorCode = FIRAuthErrorCode(rawValue: error.codE) {
                switch errorCode {
                case .ErrorCodeNetworkError:
                    print("A network error occurred")
                case .ErrorCodeUserNotFound:
                    print("ATTEMPTinG TO CREATE USER")
                    FIRAuth.auth()?.createUserWithEmail(email,error) in
                        if let error = error {
                            if let errCode = FIRAuthErrorCode(rawValue: error.codE) {
                                switch errCode {
                                case .ErrorCodeInvalidEmail:
                                    print("invalid email")
                                case .ErrorCodeWeakpassword:
                                    self.insertErrorLabel("password is considered weak (< 6 characters). Try again")
                                default:
                                    print("Create User Error: \(error)")
                                }
                            }
                        } else {
                            // create a user in the database...
                        }
                    }
                case .ErrorCodeUserTokenExpired:

                ....

执行命中signInWithEmail()中的.ErrorCodeUserNotFound案例.然后它在createUserWithEmail()中遇到默认情况.

从文档看来,似乎在createUserWithEmail()函数中有一个INVALID_EMAIL错误键可用,但是,它似乎抛出了一个内部错误,而不是遇到InvalidEmail错误情况.

三个问题：

>我是否有一个可接受的流程,signIn失败导致createUser？
>错误的实际原因是什么？
>我该如何解决？

提前致谢.