Question

我正在使用适用于Android的AWS cognito SDK 2.4.3版。它在调试版本上运行得非常好，但在发布版本上，如果出现错误，我无法对异常进行正确的描述。相反，我得到了这个

com.amazonaws.AmazonClientException: Unable to unmarshall error response (<init> [class java.lang.String]). Response Code: 400, Response Text: Bad Request
    at com.amazonaws.http.AmazonHttpClient.a(Unknown Source)
    at com.amazonaws.http.AmazonHttpClient.b(Unknown Source)
    at com.amazonaws.http.AmazonHttpClient.a(Unknown Source)
    at com.amazonaws.services.cognitoidentityprovider.AmazonCognitoIdentityProviderClient.a(Unknown Source)
    at com.amazonaws.services.cognitoidentityprovider.AmazonCognitoIdentityProviderClient.a(Unknown Source)
    at com.amazonaws.mobileconnectors.cognitoidentityprovider.CognitoUserPool.a(Unknown Source)
    at com.amazonaws.mobileconnectors.cognitoidentityprovider.CognitoUserPool.a(Unknown Source)
    at com.amazonaws.mobileconnectors.cognitoidentityprovider.CognitoUserPool$1.run(Unknown Source)
    at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.NoSuchMethodException: <init> [class java.lang.String]
    at java.lang.Class.getConstructor(Class.java:531)
    at java.lang.Class.getConstructor(Class.java:495)
    at com.amazonaws.transform.AbstractErrorUnmarshaller.a(Unknown Source)
    at com.amazonaws.transform.JsonErrorUnmarshaller.b(Unknown Source)
    at com.amazonaws.services.cognitoidentityprovider.model.transform.InvalidParameterExceptionUnmarshaller.b(Unknown Source)
    at com.amazonaws.http.JsonErrorResponseHandler.a(Unknown Source)
    at com.amazonaws.http.JsonErrorResponseHandler.b(Unknown Source)
    at com.amazonaws.http.JsonErrorResponseHandler.a(Unknown Source)
    at com.amazonaws.http.AmazonHttpClient.a(Unknown Source) 
    at com.amazonaws.http.AmazonHttpClient.b(Unknown Source) 
    at com.amazonaws.http.AmazonHttpClient.a(Unknown Source) 
    at com.amazonaws.services.cognitoidentityprovider.AmazonCognitoIdentityProviderClient.a(Unknown Source) 
    at com.amazonaws.services.cognitoidentityprovider.AmazonCognitoIdentityProviderClient.a(Unknown Source) 
    at com.amazonaws.mobileconnectors.cognitoidentityprovider.CognitoUserPool.a(Unknown Source) 
    at com.amazonaws.mobileconnectors.cognitoidentityprovider.CognitoUserPool.a(Unknown Source) 
    at com.amazonaws.mobileconnectors.cognitoidentityprovider.CognitoUserPool$1.run(Unknown Source) 
    at java.lang.Thread.run(Thread.java:818)

在调试版本上，我得到一个异常，详细说明错误。但是，在发布和调试中，如果所有字段都写得很好，则用户注册成功。我在发布时使用proguard，我正在使用this file

中的规则

对此问题的任何帮助将不胜感激。

Answer 1

尝试不同的Proguard设置后，以下是AWS SDK存储库建议的最小配置，以使其正常工作

-keep class com.amazonaws.services.cognitoidentityprovider.** { *; }

必须将其添加到app/proguard-rules.pro

Answer 2

AWS核心库中的类（不仅仅是com.amazonaws.services.cognitoidentityprovider）也可能发生解组错误。该规则将防止所有AWS lib异常的崩溃：

-keep class * extends com.amazonaws.AmazonClientException { *; }

Android和AWS Cognito - 无法使用proguard

2 个答案: