Android 混淆问题记录can't find superclass or interface

后面发现build.gradle配置的问题！！！ 
getDefaultProguardFile(‘proguard-Android.txt’), “proguard-rules.pro” 
一定要加一个”proguard-rules.pro”，之前一直把混淆放在proguard-android.txt：getDefaultProguardFile(‘proguard-android.txt’)。

proguard-rules.pro名字可以随便取，然后把混淆放里面！

    buildTypes {        release {            buildConfigField "boolean", "LOG_DEBUG", "false"  // 不显示Log            minifyEnabled true  // 混淆//            shrinkResources true // 移除无用的resource文件            proguardFiles getDefaultProguardFile('proguard-android.txt'), "proguard-rules.pro"            signingConfig signingConfigs.release//            defaultConfig {//            }        }        debug {            buildConfigField "boolean", "LOG_DEBUG", "true"  // 显示Log            signingConfig signingConfigs.debug//            defaultConfig {//            }        }    }
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proguard-rules.pro内容：

#不压缩输入的类文件-dontshrink#指定代码的压缩级别-optimizationpasses 5#包明不混合大小写-dontusemixedcaseclassnames#不去忽略非公共的库类-dontskipnonpubliclibraryclasses#优化  不优化输入的类文件-dontoptimize#预校验-dontpreverify#混淆时是否记录日志 -verbose# 混淆时所采用的算法-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*#保护注解-keepattributes *Annotation*#忽略警告-ignorewarnings-keep public class * extends android.app.Activity      # 保持哪些类不被混淆-keep public class * extends android.app.Application   # 保持哪些类不被混淆-keep public class * extends android.app.Service       # 保持哪些类不被混淆-keep public class * extends android.content.BroadcastReceiver  # 保持哪些类不被混淆-keep public class * extends android.content.ContentProvider    # 保持哪些类不被混淆-keep public class * extends android.app.backup.BackupAgentHelper # 保持哪些类不被混淆-keep public class * extends android.preference.Preference        # 保持哪些类不被混淆-keep public class com.android.vending.licensing.ILicensingService    # 保持哪些类不被混淆-keep public class com.google.vending.licensing.ILicensingService   # 保持哪些类不被混淆-keepclassmembers class **.R$* {    public static <fields>;    public static final int *;}-keepclasseswithmembernames class * {  # 保持 native 方法不被混淆    native <methods>;}-keepclasseswithmembers class * {   # 保持自定义控件类不被混淆    public <init>(android.content.Context, android.util.AttributeSet);}-keepclasseswithmembers class * {# 保持自定义控件类不被混淆    public <init>(android.content.Context, android.util.AttributeSet, int);}-keepclassmembers class * extends android.app.Activity { # 保持自定义控件类不被混淆    public void *(android.view.View);}-keepclassmembers enum * {     # 保持枚举 enum 类不被混淆    public static **[] values();    public static ** valueOf(java.lang.String);}-keep class * implements android.os.Parcelable { # 保持 Parcelable 不被混淆    public static final android.os.Parcelable$Creator *;}-keep public class * extends android.view.View {    public <init>(android.content.Context);    public <init>(android.content.Context, android.util.AttributeSet);     public <init>(android.content.Context, android.util.AttributeSet, int);    public void set*(...);    }-keepclassmembers public class * extends android.view.View {   void set*(***);   *** get*();}#apk 包内所有 class 的内部结构#-dump class_files.txt#未混淆的类和成员#-printseeds seeds.txt#列出从 apk 中删除的代码#-printusage unused.txt#混淆前后的映射#-printmapping mapping.txt#fastjson 可以混淆也可以不混淆#-keep class javax.ws.rs.** { *; }#-dontwarn com.alibaba.fastjson.**#-keep class com.alibaba.fastjson.** { *; }-keepclassmembers class * implements java.io.Serializable {    static final long serialVersionUID;    private static final java.io.ObjectStreamField[] serialPersistentFields;    private void writeObject(java.io.ObjectOutputStream);    private void readObject(java.io.ObjectInputStream);    java.lang.Object writeReplace();    java.lang.Object readResolve();    public <fields>;}-keepattributes Signature#gson-dontwarn com.google.gson.**-keep class com.google.gson.** { *;}-keepclassmembers class * implements java.io.Serializable {    static final long serialVersionUID;    private static final java.io.ObjectStreamField[] serialPersistentFields;    private void writeObject(java.io.ObjectOutputStream);    private void readObject(java.io.ObjectInputStream);    java.lang.Object writeReplace();    java.lang.Object readResolve();    public <fields>;}#v4-dontwarn android.support.v4.**-keep class android.support.v4.** { *; }-keep interface android.support.v4.app.** { *; }-keep public class * extends android.support.v4.**-keep public class * extends android.app.Fragment#greendao#-dontwarn de.greenrobot.dao.**#-keep class de.greenrobot.dao.** { *;}-keepclassmembers class * extends de.greenrobot.dao.AbstractDao {    public static java.lang.String TABLENAME;}-keep class **$Properties