的Android ProGuard的总是给人ParseException的

Question

我试图混淆使用ProGuard我的代码，但我仍然即使使用默认proguard-rules.txt得到错误：

我实在找不到这事。由于我是ProGuard的新手，你能帮我解决这个问题吗？

我gradle.build文件如下：

buildTypes { 
    release { 
     debuggable false 
     minifyEnabled true 
     shrinkResources true 
     proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt' 
    } 

    debug { 
     debuggable true 
     minifyEnabled false 
     shrinkResources false 
     proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt' 
    } 
} 

而且proguard-rules.txt：

# This is a configuration file for ProGuard. 
# http://proguard.sourceforge.net/index.html#manual/usage.html 

-dontusemixedcaseclassnames 
-dontskipnonpubliclibraryclasses 
-verbose 

# Optimization is turned off by default. Dex does not like code run 
# through the ProGuard optimize and preverify steps (and performs some 
# of these optimizations on its own). 
-dontoptimize 
-dontpreverify 
# Note that if you want to enable optimization, you cannot just 
# include optimization flags in your own project configuration file; 
# instead you will need to point to the 
# "proguard-android-optimize.txt" file instead of this one from your 
# project.properties file. 

-keepattributes *Annotation* 
-keep public class com.google.vending.licensing.ILicensingService 
-keep public class com.android.vending.licensing.ILicensingService 

# For native methods, see http://proguard.sourceforge.net/manual/examples.html#native 
-keepclasseswithmembernames class * { 
    native <methods>; 
} 

# keep setters in Views so that animations can still work. 
# see http://proguard.sourceforge.net/manual/examples.html#beans 
-keepclassmembers public class * extends android.view.View { 
    void set*(***); 
    *** get*(); 
} 

# We want to keep methods in Activity that could be used in the XML attribute onClick 
-keepclassmembers class * extends android.app.Activity { 
    public void *(android.view.View); 
} 

# For enumeration classes, see http://proguard.sourceforge.net/manual/examples.html#enumerations 
-keepclassmembers enum * { 
    public static **[] values(); 
    public static ** valueOf(java.lang.String); 
} 

-keepclassmembers class * implements android.os.Parcelable { 
    public static final android.os.Parcelable$Creator CREATOR; 
} 

-keepclassmembers class **.R$* { 
    public static <fields>; 
} 

# The support library contains references to newer platform versions. 
# Don't warn about those in case this app is linking against an older 
# platform version. We know about them, and they are safe. 
-dontwarn android.support.** 

# Understand the @Keep support annotation. 
-keep class android.support.annotation.Keep 

-keep @android.support.annotation.Keep class * {*;} 

-keepclasseswithmembers class * { 
    @android.support.annotation.Keep <methods>; 
} 

-keepclasseswithmembers class * { 
    @android.support.annotation.Keep <fields>; 
} 

-keepclasseswithmembers class * { 
    @android.support.annotation.Keep <init>(...); 
} 

Answer 1

看着日志指出我正确的方向。

问题是XML布局中的一个无声错误，实际上我有一个按钮android:onClick=""属性和参数是空的。 我认为ProGuard生成了一个空方法名称的方法，这导致了问题。

Answer 2

我总是使用*的.pro的proguard相关文件。尝试将* .txt更改为* .pro。

proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'