androidstudio 解决Error:warning: Ignoring InnerClasses attribute for an anonymous inner

用androidstudio 编写项目时引入第三方的包出现以下编译错误

Error:warning: Ignoring InnerClasses attribute for an anonymous inner class  

Error:(com.tencent.mm.sdk.b.c) that doesn't come with an

Error:associated EnclosingMethod attribute. This class was probably produced by a

Error:compiler that did not target the modern .class file format. The recommended

Error:solution is to recompile the class from source, using an up-to-date compiler

Error:and without specifying any "-target" type options. The consequence of ignoring

Error:this warning is that reflective operations on this class will incorrectly

Error:indicate that it is *not* an inner class.

Error:warning: Ignoring InnerClasses attribute for an anonymous inner class

Error:(com.tencent.mm.sdk.diffdev.a.b) that doesn't come with an

Error:associated EnclosingMethod attribute. This class was probably produced by a

Error:compiler that did not target the modern .class file format. The recommended

Error:solution is to recompile the class from source, using an up-to-date compiler

Error:and without specifying any "-target" type options. The consequence of ignoring

Error:this warning is that reflective operations on this class will incorrectly

Error:indicate that it is *not* an inner class.

Error:warning: Ignoring InnerClasses attribute for an anonymous inner class

等多个内部类出现错误，这是在引用第三方sdk时出现的问题。

我在proguard-rules.pro中加上了以下代码，将问题解决了不显示错误了。

#-keepattributes EnclosingMethod

#-kee#-downwarn com.tencent.mm.sdk.**#-keep class com.tencent.mm.sdk.**{*;}