当尝试通过API Gateway从getTokens检索数据时收到错误“AWS不支持在签名时检索令牌”

Question

问题：

控制台显示"getTokens不支持在签名时检索令牌-“错误。步骤: 1.使用Android studio运行应用2.登录AWS (我的应用使用amplify插件UI ) 3.通过API Gateway从AWS检索数据--> result OK (能够检索) 4.注销并重新登录5.通过API Gateway --> result NG从AWS检索数据(显示上面的错误)

note:
my configuration file include: Cognito User pool and Identity pool. this is auto generate after keyin " amplify add auth" at CLI.
if i deleted  Cognito Identity pool from configuration file, issue not happen.
May i know why ?


my configuration file:
{
    "UserAgent": "aws-amplify-cli/0.1.0",
    "Version": "1.0",
    "IdentityManager": {
        "Default": {}
    },

    "CredentialsProvider": {
        "CognitoIdentity": {
            "Default": {
                "PoolId": "xxx",
                "Region": "us-east-2"
            }
        }
    },

    "CognitoUserPool": {
        "Default": {
            "PoolId": "us-east-2_xxx",
            "AppClientId": "xxx",
            "AppClientSecret": "xxx",
            "Region": "us-east-2"
        }
    }
}

sign-in code:
  @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_authentication);

        AWSMobileClient.getInstance().initialize(getApplicationContext(), new Callback<UserStateDetails>() {

            @Override
            public void onResult(UserStateDetails userStateDetails) {

                switch (userStateDetails.getUserState()) {
                    case SIGNED_IN:

                                Intent i = new Intent(Authentication.this, AvailableFlavor.class);

                        break;

                    case SIGNED_OUT:
                       showSignIn();

                        break;


                    default:
                        AWSMobileClient.getInstance().signOut();
                        showSignIn();
                        break;
                }
            }

            @Override
            public void onError(Exception e) {

            }
        });
    }


    private void showSignIn() {
        try {
            AWSMobileClient.getInstance().showSignIn(this,
                    SignInUIOptions.builder().nextActivity(LoginSuccess.class)
                                                        .build());
        } catch (Exception e) {
            //  Log.e(TAG, e.toString());
        }
    }
}

Answer 1

我猜错误的结尾是"getTokens不支持在签名时检索令牌“--...out？我遇到了类似的错误，请在app -> src -> res -> raw -> amplifyconfiguration.json & awsconfiguration.json中检查您的identity poolId是否正确(即使您没有使用guest访问或只想使用用户池功能)。您可以在您的亚马逊网络服务控制台中找到您的poolId -> ->管理身份池->单击您的池->单击示例代码：

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