Proguard error while generating Secure Signed APK

Question

I have been trying from last 2 days to generate the secure signed apk for my application but still not get any success in it.

I have check so many answers of StackOverflow and tried every solution but nothing worked for me. So here i am if anyone can help me out it will be really grateful and will really appreciate the help.

Below is the error which i am getting while generating the Secure signed apk.

EDITED:

I have some changes in my proguard file and now i am getting below error

  Proguard returned with error code 1. See console
Note: there were 209 duplicate class definitions.
You should check if you need to specify additional program jars.
Unexpected error while evaluating instruction:
Class       = [android/support/v4/view/AccessibilityDelegateCompat$AccessibilityDelegateJellyBeanImpl]
Method      = [newAccessiblityDelegateBridge(Landroid/support/v4/view/AccessibilityDelegateCompat;)Ljava/lang/Object;]
Instruction = [18] areturn
 Exception   = [java.lang.IllegalArgumentException] (Can't find any super classes of [android/support/v4/view/AccessibilityDelegateCompatIcs$1] (not even immediate super class [android/view/View$AccessibilityDelegate]))
 Unexpected error while performing partial evaluation:
 Class       = [android/support/v4/view/AccessibilityDelegateCompat$AccessibilityDelegateJellyBeanImpl]
 Method      = [newAccessiblityDelegateBridge(Landroid/support/v4/view/AccessibilityDelegateCompat;)Ljava/lang/Object;]
 Exception   = [java.lang.IllegalArgumentException] (Can't find any super classes of [android/support/v4/view/AccessibilityDelegateCompatIcs$1] (not even immediate super class [android/view/View$AccessibilityDelegate]))
java.lang.IllegalArgumentException: Can't find any super classes of [android/support/v4/view/AccessibilityDelegateCompatIcs$1] (not even immediate super class [android/view/View$AccessibilityDelegate])
at proguard.evaluation.value.ReferenceValue.generalize(ReferenceValue.java:287)
at proguard.evaluation.value.ReferenceValue.generalize(ReferenceValue.java:481)
at proguard.optimize.info.MethodOptimizationInfo.generalizeReturnValue(MethodOptimizationInfo.java:247)
at proguard.optimize.evaluation.StoringInvocationUnit.generalizeMethodReturnValue(StoringInvocationUnit.java:195)
at proguard.optimize.evaluation.StoringInvocationUnit.setMethodReturnValue(StoringInvocationUnit.java:126)
at proguard.evaluation.BasicInvocationUnit.exitMethod(BasicInvocationUnit.java:134)
at proguard.evaluation.Processor.visitSimpleInstruction(Processor.java:514)
at proguard.classfile.instruction.SimpleInstruction.accept(SimpleInstruction.java:218)
at proguard.optimize.evaluation.PartialEvaluator.evaluateSingleInstructionBlock(PartialEvaluator.java:753)
at proguard.optimize.evaluation.PartialEvaluator.evaluateInstructionBlock(PartialEvaluator.java:587)
at proguard.optimize.evaluation.PartialEvaluator.evaluateInstructionBlockAndExceptionHandlers(PartialEvaluator.java:560)
at proguard.optimize.evaluation.PartialEvaluator.visitCodeAttribute0(PartialEvaluator.java:264)
at proguard.optimize.evaluation.PartialEvaluator.visitCodeAttribute(PartialEvaluator.java:181)
at proguard.classfile.attribute.CodeAttribute.accept(CodeAttribute.java:101)
at proguard.classfile.ProgramMethod.attributesAccept(ProgramMethod.java:79)
at proguard.classfile.attribute.visitor.AllAttributeVisitor.visitProgramMember(AllAttributeVisitor.java:95)
at proguard.classfile.util.SimplifiedVisitor.visitProgramMethod(SimplifiedVisitor.java:91)
at proguard.classfile.ProgramMethod.accept(ProgramMethod.java:71)
at proguard.classfile.ProgramClass.methodsAccept(ProgramClass.java:504)
at proguard.classfile.visitor.AllMethodVisitor.visitProgramClass(AllMethodVisitor.java:47)
at proguard.classfile.ProgramClass.accept(ProgramClass.java:346)
at proguard.classfile.ClassPool.classesAccept(ClassPool.java:116)
at proguard.optimize.Optimizer.execute(Optimizer.java:372)
at proguard.ProGuard.optimize(ProGuard.java:306)
at proguard.ProGuard.execute(ProGuard.java:115)
at proguard.ProGuard.main(ProGuard.java:492)

Here is my UPDATED Proguard.cfg file

 -optimizationpasses 9
  -verbose
  -dump class_files.txt
  -printseeds seeds.txt
  -printusage unused.txt
  -printmapping mapping.txt
  -allowaccessmodification
  -keepattributes *Annotation*
  -renamesourcefileattribute SourceFile
  -keepattributes SourceFile,LineNumberTable
  -repackageclasses ''
  -dontusemixedcaseclassnames
  -dontskipnonpubliclibraryclasses
  -dontskipnonpubliclibraryclassmembers
  -dontpreverify
  -dontwarn
  -ignorewarnings

  -keep public class * extends android.app.Activity
  -keep public class * extends android.app.Application
  -keep public class * extends android.app.Service
  -keep public class * extends android.content.BroadcastReceiver
  -keep public class * extends android.content.ContentProvider
  -keep public class * extends android.app.backup.BackupAgentHelper
  -keep public class * extends android.preference.Preference
  -keep public class com.android.vending.licensing.ILicensingService
  -dontnote com.android.vending.licensing.ILicensingService

  # Explicitly preserve all serialization members. The Serializable interface
  # is only a marker interface, so it wouldn't save them.
  -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();
  }

  # Preserve all native method names and the names of their classes.
  -keepclasseswithmembernames class * {
      native <methods>;
  }

  -keepclasseswithmembernames class * {
      public <init>(android.content.Context, android.util.AttributeSet);
  }

  -keepclasseswithmembernames class * {
      public <init>(android.content.Context, android.util.AttributeSet, int);
  }

  # Preserve static fields of inner classes of R classes that might be accessed
  # through introspection.
  -keepclassmembers class **.R$* {
    public static <fields>;
  }

  # Preserve the special static methods that are required in all enumeration classes.
  -keepclassmembers enum * {
      public static **[] values();
      public static ** valueOf(java.lang.String);
  }

  -keep public class * {
      public protected *;
  }

  -keep class * implements android.os.Parcelable {
    public static final android.os.Parcelable$Creator *;
  }
  ##---------------End: proguard configuration common for all Android apps ----------
  ##---------------Begin: proguard configuration for Gson  ----------
  # Gson uses generic type information stored in a class file when working with fields. Proguard
  # removes such information by default, so configure it to keep all of it.
  -keepattributes Signature

  # For using GSON @Expose annotation
  # Gson specific classes
  -keep class sun.misc.Unsafe { *; }
  -keep class com.google.gson.stream.** { *; }
  -keep class com.google.gson.FieldNamingStrategy { *; }
  ##---------------End: proguard configuration for Gson  ----------
  -keep class twitter4j.** { *; }
  -keep class com.wli.ecard.TwitterShareActivity { *; }
  -keep class com.wli.ecard.Vo.** { *; }
  -keep class com.wli.ecard.EcardAcra.** { *; }

Please help me out any help will be appreciated.

Thanks.

Answer 1

I have resolved my issue by adding the below two lines in my proguard.cfg file.

-keep class android.support.v4.** { ; }
-dontwarn android.support.v4.*

Answer 2

use

-dontwarn android.support.v4.**

another try:

download the lates proguard ( i downloaded 4.9) and changes the lib folder

another another try:

you can use a standard proguard. for example see here

Recently I also faced several problems and planning to learn progruard mechanismn in depth. But at present I have very little idea about this. But the previous three solution saves me several time