[Android]添加第三方jar后，使用ProGuard混淆打包出错的解决方法

在我的android应用中,加入了google广告推广的第三方库admob jar,但是在通过ProGuard混淆打包的时候找不到相关引用的类com.google.ads.internal.state.AdState 

jar文件的位置是在 /libs/GoogleAdMobAdsSdk-6.2.1.jar

 

LogCat error:

Proguard returned with error code 1. See console 

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Warning: 

com.google.ads.m: can't find referenced class
com.google.ads.internal.state.AdState 
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Warning: com.google.ads.m: can't find referenced class com.google.ads.internal.state.AdState 

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You should check if you need to specify additional program jars. 

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Warning: there were 2 unresolved references to classes or interfaces. 

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You may need to specify additional library jars (using '-libraryjars'). 

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java.io.IOException: Please correct the above warnings first.
at proguard.Initializer.execute(Initializer.java:321)
at proguard.ProGuard.initialize(ProGuard.java:211)
at proguard.ProGuard.execute(ProGuard.java:86)
at proguard.ProGuard.main(ProGuard.java:492)

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  只需要添加下面一句代码

-dontwarn com.google.ads.**

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到proguard-project.txt文件中，就可以成功的生成签名apk了!