Android:eclipse中的Proguard错误

我正在尝试构建我的应用程序的签名apk。但我得到的错误弹出为

Proguard returned with error code 1. See console

并将控制台中的错误记录为：

[2016-04-15 11:36:44 - MyApp] Proguard returned with error code 1. See console
[2016-04-15 11:36:44 - MyApp] Note: there were 85 duplicate class definitions.
[2016-04-15 11:36:44 - MyApp] Warning: org.acra.ErrorReporter: can't find referenced method 'void setLatestEventInfo(android.content.Context,java.lang.CharSequence,java.lang.CharSequence,android.app.PendingIntent)' in class android.app.Notification
[2016-04-15 11:36:44 - MyApp]       You should check if you need to specify additional program jars.
[2016-04-15 11:36:44 - MyApp] Warning: there were 1 unresolved references to program class members.
[2016-04-15 11:36:44 - MyApp]          Your input classes appear to be inconsistent.
[2016-04-15 11:36:44 - MyApp]          You may need to recompile them and try again.
[2016-04-15 11:36:44 - MyApp]          Alternatively, you may have to specify the option 
[2016-04-15 11:36:44 - MyApp]          '-dontskipnonpubliclibraryclassmembers'.
[2016-04-15 11:36:44 - MyApp] java.io.IOException: Please correct the above warnings first.
[2016-04-15 11:36:44 - MyApp]   at proguard.Initializer.execute(Initializer.java:321)
[2016-04-15 11:36:44 - MyApp]   at proguard.ProGuard.initialize(ProGuard.java:211)
[2016-04-15 11:36:44 - MyApp]   at proguard.ProGuard.execute(ProGuard.java:86)
[2016-04-15 11:36:44 - MyApp]   at proguard.ProGuard.main(ProGuard.java:492)

我不明白是什么问题。对于最后一个版本，它可以正常工作。我只是在这个版本中支持Marsh Mellow

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请建议我在没有Proguard错误的情况下对内置签名apk执行哪些更改或步骤。

尝试将其添加到Proguard配置文件：

-keep class org.apache.http.** { *; }
-dontwarn org.apache.http.**
-dontwarn android.net.**

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请显示并使用您的proguard规则