问题描述
我正在尝试使用一个简单的代码来注册用户,其中我也对电子邮件和密码进行了硬编码。代码如下:
Future<String> _Signup(BuildContext context) async {
try {
await Amplify.Auth.signUp(
username: 'johndoe@gmail.com',password: 'john12345',options: CognitoSignUpOptions(
userAttributes: {'email': 'johndoe@gmail.com'}
)
);
} catch (e) {
return e.toString();
}
}
当我点击它时会抛出以下错误:
PlatformException (PlatformException(AuthException,Translating platform exception Failed. Please take a look at https://github.com/aws-amplify/amplify-Flutter/issues to see if there are any existing issues that match your scenario,and file an issue with the details of the bug if there isn't.,{recoverySuggestion: See attached exception for more details.,underlyingException: java.lang.NullPointerException: Attempt to invoke virtual method 'void com.amazonaws.mobileconnectors.cognitoidentityprovider.CognitoUserPool.signUp(java.lang.String,java.lang.String,com.amazonaws.mobileconnectors.cognitoidentityprovider.CognitoUserAttributes,java.util.Map,com.amazonaws.mobileconnectors.cognitoidentityprovider.handlers.SignUpHandler)' on a null object reference,message: Sign up Failed},null))
解决方法
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