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use proguard for android project always got error?

I have a problem with using proguard, this first time I learned proguard, I use this and more link to make proguard but I have not been able to implement to my project,in my app I use libs google_play_services and actionbarsherlock. I kept trying and the result is always error. I had 2 days looking for how I can use proguard in my project, this time I was really confused, I need proguard in my application, this screenshot of my app (app_run).
this my proguard setting
-optimizationpasses 5
#When not preverifing in a case-insensitive filing system, such as Windows. Because this tool unpacks your processed jars, you should then use:
-dontusemixedcaseclassnames
#Specifies not to ignore non-public library classes. As of version 4.5, this is the default setting
-dontskipnonpubliclibraryclasses
#Preverification is irrelevant for the dex compiler and the Dalvik VM, so we can switch it off with the -dontpreverify option.
-dontpreverify
#Specifies to write out some more information during processing. If the program terminates with an exception, this option will print out the entire stack trace, instead of just the exception message.
-verbose
#The -optimizations option disables some arithmetic simplifications that Dalvik 1.0 and 1.5 can't handle. Note that the Dalvik VM also can't handle aggressive overloading (of static fields).
#To understand or change this check http://proguard.sourceforge.net/index.html#/manual/optimizations.html
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
#To repackage classes on a single package
#-repackageclasses ''
#Uncomment if using annotations to keep them.
#-keepattributes *Annotation*
#Keep classes that are referenced on the AndroidManifest
-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 com.android.vending.licensing.ILicensingService
#To remove debug logs:
-assumenosideeffects class android.util.Log {
public static *** d(...);
public static *** v(...);
public static *** i(...);
}
## ActionBarSherlock 4.4.0 specific rules ##
-keep class android.support.v4.app.** { *; }
-keep interface android.support.v4.app.** { *; }
-keep class com.actionbarsherlock.** { *; }
-keep interface com.actionbarsherlock.** { *; }
-keepattributes *Annotation*
## hack for Actionbarsherlock 4.4.0, see https://github.com/JakeWharton/ActionBarSherlock/issues/1001 ##
-dontwarn com.actionbarsherlock.internal.**
## Google Play Services 4.3.23 specific rules ##
## https://developer.android.com/google/play-services/setup.html#Proguard ##
-keep class * extends java.util.ListResourceBundle {
protected Object[][] getContents();
}
-keep public class com.google.android.gms.common.internal.safeparcel.SafeParcelable {
public static final *** NULL;
}
-keepnames #com.google.android.gms.common.annotation.KeepName class *
-keepclassmembernames class * {
#com.google.android.gms.common.annotation.KeepName *;
}
-keepnames class * implements android.os.Parcelable {
public static final ** CREATOR;
}
#To avoid changing names of methods invoked on layout's onClick.
# Uncomment and add specific method names if using onClick on layouts
#-keepclassmembers class * {
# public void onClickButton(android.view.View);
#}
#Maintain java native methods
-keepclasseswithmembernames class * {
native <methods>;
}
#To maintain custom components names that are used on layouts XML.
#Uncomment if having any problem with the approach below
#-keep public class custom.components.package.and.name.**
#To maintain custom components names that are used on layouts XML:
-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*(...);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet, int);
}
#Maintain enums
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
#To keep parcelable classes (to serialize - deserialize objects to sent through Intents)
-keep class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator *;
}
#Keep the R
-keepclassmembers class **.R$* {
public static <fields>;
}
could anyone help me to give a way how to use proguard for my application?
really need help,thanks

Proguard is going to require "rules" for the libraries you use, and possibly your own code too. Many of these rules can be found https://github.com/krschultz/android-proguard-snippets/tree/master/libraries

Obfuscate the folder structure - Android

I am developing a android application. I obfuscates the code of the project using progaurd. I want to obfuscate the folder structure as well. anyway to do that ?
Thanks for your help

ProGuard contains various directives, for your ProGuard rules file, that can obfuscate package names, such as -flattenpackagehierarchy and -repackageclasses. Just make sure that anything referenced from AndroidManifest.xml or otherwise accessed via reflection is kept intact.
It is conceivable that the commercial, Android-tuned DexGuard tool can even let you repackage stuff in the manifest (by modifying the manifest entries as part of the obfuscation process), but I do not know if it does or not.

copy and paste this code in proguard.cfg:
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-verbose
-dontoptimize
-dontpreverify
-keepattributes *Annotation*
-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.BackupAgent
-keep public class * extends android.preference.Preference
-keep public class * extends android.support.v4.app.Fragment
-keep public class * extends android.support.v7.app.ActionBarActivity
-keep public class * extends android.app.Fragment
-keep public class com.android.vending.licensing.ILicensingService
-keepclasseswithmembernames class * {
native <methods>;
}
-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*(...);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclassmembers class * extends android.app.Activity {
public void *(android.view.View);
}
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
-keep class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator *;
}
-keepclassmembers class **.R$* {
public static <fields>;
}
-dontwarn android.support.**

Calling to Endpoints from Android

I'm developing an app with android and appEngine. I deployed AppEngine with 2 new Entities: Version and Noticia.
If I make a call from webbrowser to list Noticia the result is a wellformed json with my Noticias.
If I call from Android (with the generated appName-modules) in debug mode everything works fine, but when I make from realease version I can't get anything from my appengine.
I think that is something about auths but I don't want user to authenticate.
I have in api entity declarations clientId and audiences empty.
Thanks in advance,
iniro
UPDATE --> SOLUTION
Finally I found the solution B-)
The problem was my proguard configuration.
I changed my proguard config file for this one, and voilá.
Thanks.
# Add project specific ProGuard rules here.
# By default, the flags in this file are appended to flags specified
# in C:/Android/android-studio/sdk/tools/proguard/proguard-android.txt
# You can edit the include path and order by changing the ProGuard
# include property in project.properties.
#
# For more details, see
# http://developer.android.com/guide/developing/tools/proguard.html
# Add any project specific keep options here:
# If your project uses WebView with JS, uncomment the following
# and specify the fully qualified class name to the JavaScript interface
# class:
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
# public *;
#}
# Needed by google-api-client to keep generic types and #Key annotations accessed via reflection
-optimizationpasses 5
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontpreverify
-verbose
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
-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
-keepclasseswithmembernames class * {
native <methods>;
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclassmembers class * extends android.app.Activity {
public void *(android.view.View);
}
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
-keep class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator *;
}
# Needed by google-api-client to keep generic types and #Key annotations accessed via reflection
-keepclassmembers class * {
#com.google.api.client.util.Key <fields>;
}
-keepattributes Signature,RuntimeVisibleAnnotations,AnnotationDefault
# Needed by Guava
-dontwarn sun.misc.Unsafe
# See https://groups.google.com/forum/#!topic/guava-discuss/YCZzeCiIVoI
-dontwarn com.google.common.collect.MinMaxPriorityQueue

Proguard error while exporting android project

I was trying to export android application from project (Osmand) in Eclipse, the problem is that the proguard returned error code 1. Previously it throwed multiple warnings, so I used "-dontwarn" commands. Now the console sais this:
Proguard returned with error code 1. See console
Note: there were 227 duplicate class definitions.
You should check if you need to specify additional program jars.
Unexpected error while evaluating instruction:
Class = [com/actionbarsherlock/app/SherlockFragmentActivity]
Method = [getSherlock()Lcom/actionbarsherlock/ActionBarSherlock;]
Instruction = [10] invokestatic #36
Exception = [java.lang.IllegalArgumentException] (Can't find common super class of [android/app/Activity] (with 11 known super classes) and [com/actionbarsherlock/app/SherlockFragmentActivity] (with 6 known super classes))
Unexpected error while performing partial evaluation:
Class = [com/actionbarsherlock/app/SherlockFragmentActivity]
Method = [getSherlock()Lcom/actionbarsherlock/ActionBarSherlock;]
Exception = [java.lang.IllegalArgumentException] (Can't find common super class of [android/app/Activity] (with 11 known super classes) and [com/actionbarsherlock/app/SherlockFragmentActivity] (with 6 known super classes))
java.lang.IllegalArgumentException: Can't find common super class of [android/app/Activity] (with 11 known super classes) and [com/actionbarsherlock/app/SherlockFragmentActivity] (with 6 known super classes)
...
Proguard config file:
-optimizationpasses 5
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontpreverify
-verbose
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
-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
-keepclasseswithmembernames class * {
native <methods>;
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclassmembers class * extends android.app.Activity {
public void *(android.view.View);
}
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
-keep class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator *;
}
#this part was added:
-dontwarn android.support.v4.app.Watson
-dontwarn com.actionbarsherlock.**
-dontwarn com.dropbox.client2.**
-dontwarn net.osmand.plus.activities.search.**
-dontwarn net.osmand.plus.activities.NavigatePointFragment
-dontwarn net.osmand.plus.activities.FavouritesListFragment
-dontwarn net.osmand.plus.activities.FavouritesListActivity
-dontwarn net.osmand.plus.activities.FavouritesListFragment$FavouritesAdapter
What should I do?

Method must be overridden in [proguard.optimize.peephole.ClassMerger] if ever called

Proguard returned with error code 1. See console
[2013-04-04 16:25:20 - ] Note: there were 157 duplicate class definitions.
[2013-04-04 16:25:20 - ] Error: Method must be overridden in [proguard.optimize.peephole.ClassMerger] if ever called
I have tried every possible solution found on SO. There were around 2000 duplicates which now came down to 157. I have some external jars in my project too. This is my proguard.cfg file:
-dontwarn android.support.**
-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.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*(...);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclassmembers class * extends android.content.Context {
public void *(android.view.View);
public void *(android.view.MenuItem);
}
-keepclassmembers class * implements android.os.Parcelable {
static android.os.Parcelable$Creator CREATOR;
}
-keepclassmembers class **.R$* {
public static <fields>;
}
-keep class com.flurry.** { *; }
-dontwarn com.flurry.**
-keep class org.apache.** { *; }
-dontwarn org.apache.**
-dump proguard/class_files.txt
-printseeds proguard/seeds.txt
-printusage proguard/unused.txt
-printmapping proguard/mapping.txt
This application is for Android 4.0
Can you kindly let me know whats causing this and how do I go about in fixing it.

Merging my project's proguard config with one from ${sdk.dir}/tools/proguard/proguard-android.txt did the trick.
This error mostly happens with 3rd party build systems (e.g. Maven), which don't know about default proguard config.
UPD: ...because of the following content of default config:
# 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