Develop Reference

Proguard returned with error code 1. See console java.io.IOException

While exporting my Android Application from Eclipse IDE, I am getting errors as below:
Proguard returned with error code 1. See console
Warning: library class android.net.http.AndroidHttpClient extends or implements program class org.apache.http.client.HttpClient
You should check if you need to specify additional program jars.
Warning: there were 1 instances of library classes depending on program classes.
You must avoid such dependencies, since the program classes will
be processed, while the library classes will remain unchanged.
java.io.IOException: Please correct the above warnings first.
at proguard.Initializer.execute(Initializer.java:321)
at proguard.ProGuard.initialize(ProGuard.java:211)
at proguard.ProGuard.execute(ProGuard.java:86)
at proguard.ProGuard.main(ProGuard.java:492)
project.properties
# This file is automatically generated by Android Tools.
# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
#
# This file must be checked in Version Control Systems.
#
# To customize properties used by the Ant build system edit
# "ant.properties", and override values to adapt the script to your
# project structure.
#
# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):
proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt:proguard-google-api-client.txt
# Project target.
target=android-21
proguard-project
# To enable ProGuard in your project, edit project.properties
# to define the proguard.config property as described in that file.
#
# Add project specific ProGuard rules here.
# By default, the flags in this file are appended to flags specified
# in ${sdk.dir}/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 *;
#}
-dontwarn com.google.android.gms.**
-dontwarn javax.jdo.**
-dontwarn com.google.api.client.googleapis.extensions.android.gms.**
-dontwarn org.apache.commons.**
-dontwarn org.ietf.jgss.**
-dontnote
I have added dontwarn and dontnote statements to proguard confing file with that I resolved few warnings but Not able to solve remaining issue.Please help me to solve this.Thanks you.

You Just need to add below code to your project's proguard-project.txt file.
-dontwarn ["error package name or Error file path here"]
example as :
-dontwarn com.example.media.*
and if you have more(insane) errors coming, then just add
-dontskipnonpubliclibraryclassmembers
May be this helpful for you.

Add this to Your proguard-project file:
-keep class org.apache.http.** { *; }
-dontwarn org.apache.http.*
Then come back if still errors exists.

please used comments before the given code bellow
proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt:proguard-google-api-client.txt
In project.properties file

I also have faced this problem. Cleaning the project and exporting again should fix this.

As the issue was due to library class android.net.http.AndroidHttpClient and org.apache.http.client.HttpClient, I added -dontwarn statements for both the library classes to proguard-project file. what I added is:
-keep class org.apache.http.** { *; }
-dontwarn org.apache.http.*
-dontwarn android.net.http.*
and I am done. Thank you all for helping out on this.

Is there an example for getting Proguard working with Cocos2d-x? And twitter4j

I've searched discuss.cocos for an example but there isn't one. Feeling this to be a more OS agnostic platform to ask on I search for enlightenment here.
I got a massive headache after turning it on by writing
proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt
in project.properties in my project's base directory.
I couldn't copy-past text because the console display in Eclipse immediately cleared and presented like there was nothing wrong but I got "error code 1. See console" type of message, repeatedly.
Though the problem appears to be with twitter4j I'm sure there are many more warnings that scrolled by before that, well, I'm not sure, the whole thing was so sudden.
I've trawled this site for help and while most advice consists of adding dontwarn lines I feel I need to be exporting libraries instead of, as I did with twitter4j, just copying the libjar to my project's own lib folder.
I've tried adding:
-dontwarn twitter4j.management.**
-dontwarn twitter4j.**
-dontwarn javax.management.**
-dontwarn com.google.api.client.googleapis.extensions.android.gms.**
-keep class javax.** { *; }
-keep class org.** { *; }
-keep class twitter4j.** { *; }
-keep class java.lang.management.** { *; }
-keep class com.google.code.** { *; }
-keep class oauth.signpost.** { *; }
-libraryjars /libs/twitter4j-core-3.0.3.jar
-keep class twitter4j.**
-keepclassmembers class twitter4j.** {
<init>(...);
<methods>;
<fields>;
}
To proguard-project.txt but it had no effect. I'm tending not to want to bother with proguard since C++ is much better for obfuscation anyway. It's strange how none of the howto's I read promoted including the entire twitter4j project. I prefer the small 300kb library. But not if it's limiting optimisations in other respects.
My SDK is version 22.6 by the way.
____EDIT____
In looking for a complete example i found SDK/tools/proguard/examples/android.pro
I tried copy pasting the lot to no further effect but was disconcerted by the advice in the header of that file:
If you're using the Android SDK (version 2.3 or higher), the android tool
already creates a file like this in your project, called proguard.cfg.
It should contain the settings of this file, minus the input and output paths
(-injars, -outjars, -libraryjars, -printmapping, and -printseeds).
The generated Ant build file automatically sets these paths.
Android tool? proguard.cfg? Surely proguard knows the new files are merely instructed to reference the configs in the SDK/tools/proguard directory?
proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt

You say you're changing proguard-project.txt, but are you actually using that file? Have you changed project.properties to point to your file instead of the default android one?
proguard.config=proguard-project.txt

Your project.properties file should point to Android's default configuration and to your own project-specific configuration:
proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
This is the standard line in the properties files that the Android SDK generates.
In your proguard-project.txt file, you can then add -keep options to avoid problems with code that performs reflection. In this case, you should also add -dontwarn options to reassure ProGuard that the missing dependencies are not a problem in practice. It will then proceed processing the application.
You should not add -libraryjars options, since the Android build process already automatically specifies all necessary -injars, -outjars, and -libraryjars for you.

Android proguard and library projects

the proguard is killing me with messages like that one:
"[proguard] Warning: class [facebook/bin/classes/com/facebook/internal/FileLruCache$StreamHeader.class] unexpectedly contains class [com.facebook.internal.FileLruCache$StreamHeader]"
and the final warning is:
[proguard] Warning: there were 332 classes in incorrectly named files.
[proguard] You should make sure all file names correspond to
their class names. [proguard] The directory hierarchies must
correspond to the package hierarchies. [proguard] If you
don't mind the mentioned classes not being written out, [proguard]
you could try your luck using the '-ignorewarnings' option.
Seems to me I haven't adjusted the library projects that I am using (like facebook) with the proguard.
I don't really want to obfuscate the lib projects, but the lines
-keep class com.facebook.** { *; }
-keep interface com.facebook.** { *; }
does not to do the trick.
Can you enlighten me on that one?
Thanks

Cfr. ProGuard manual > Troubleshooting > Warning: class file ... unexpectedly contains class ...
It seems that your configuration contains a -injars option that doesn't point to the root directory of the packages and classes (.../facebook/bin/classes).
However, the standard Android build process already specifies all necessary -injars options for you, so you shouldn't add any.

Ok, I fixed in with many -dontwarn options in proguard config file.
Also, I don't obfuscate anything that is not in my main package (-keepclass !com.yyy.** { *; } and keepinterface as well). This seems to work nicely.

Unknown classes ILicensingService notes when obfuscating Android project

I'm trying to build an Android release with Ant and ProGuard. I uncommented the following line in project.properties, despite the comment in said file noting that you shouldn't modify it ;):
proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
When obfuscating, I get the following notes:
[proguard] Note: the configuration refers to the unknown class 'com.google.vending.licensing.ILicensingService'
[proguard] Note: the configuration refers to the unknown class 'com.android.vending.licensing.ILicensingService'
I do understand why this is happening. These lines can be found in the default ProGuard config file (${sdk.dir}/tools/proguard/proguard-android.txt):
-keep public class com.google.vending.licensing.ILicensingService
-keep public class com.android.vending.licensing.ILicensingService
I'm not using the Google Licensing Service, so the classes are indeed unknown. I found a solution to get rid of these notes by updating the proguard-project.txt:
-dontnote **ILicensingService
My question: Is this the correct way of handling this? It seems to me that these classes shouldn't be kept by default anyway, since that lib isn't mandatory for an android project. The only way I can think of to achieve this is by copying the default config file to my project, removing the -keep lines and ignoring the default config file in the SDK completely. Which doesn't seem as the proper way to go either. Or am I missing something?

The setting "-dontnote com.google.vending.licensing.ILicensingService" is fine. In fact, it could have been part of the default configuration file.
The -keep option may be necessary for projects that use the library.
The -dontnote option may be nice to suppress the note about the -keep option, for projects that don't use the library. The note is just a gentle reminder that the configuration file could contain a typo, because the specified class doesn't seem to exist. It doesn't affect the processing.

How to exclude R*.class files from a proguard build

I am one step away from making the method described here:
Targeting Android with Scala 2.8 Trunk builds
work with a single project (vs one project for scala and one for android).
I've come across a problem. Using this input file (arguments to) proguard:
-injars bin;lib/scala-library.jar(!META-INF/MANIFEST.MF,!library.properties)
-outjar lib/scandroid.jar
-libraryjars lib/android.jar
-dontwarn
-dontoptimize
-dontobfuscate
-dontskipnonpubliclibraryclasses
-dontskipnonpubliclibraryclassmembers
-keepattributes Exceptions,InnerClasses,Signature,Deprecated,
SourceFile,LineNumberTable,*Annotation*,EnclosingMethod
-keep public class org.scala.jeb.** { public protected *; }
-keep public class org.xml.sax.EntityResolver { public protected *; }
Proguard successfully builds scandroid.jar, however it appears to have included the generated R classes that the android resource builder generates and compiles. In this case, they are located in bin/org/jeb/R*.class. This is not what I want. The android dalvik converter cannot build because it thinks there is a duplicate of the R class (it's in scandroid and also the R*.class files). How can I modify the above proguard arguments to exclude the R*.class files from the scandroid.jar so the dalvik converter is happy?
Edit: I should note that I tried adding ;bin/org/jeb/R.class;etc... to the -libraryjars argument, and that only seemed to cause it to complain about duplicate classes, and in addition proguard decided to exclude my scala class files too.

I use this option. You can find reference from link below and find "A complete Android application".
http://proguard.sourceforge.net/index.html#/manual/examples.html
-keepclassmembers class **.R$* {
public static <fields>;
}

file filter !**/*R.java in other words this lien forces Proguard to keep all java files except R.java files in the obfuscation