Develop Reference

After exclude module 'answer-shim' in the android gradle for io.branch.sdk couldn't build with proguard

When try to build the release build with proguard enable getting below warning and couldn't build the APK successfully.
Warning:io.branch.referral.ExtendedAnswerProvider: can't find referenced class com.crashlytics.android.answers.shim.KitEvent
Warning:io.branch.referral.ExtendedAnswerProvider: can't find referenced class com.crashlytics.android.answers.shim.AnswersOptionalLogger
Warning:io.branch.referral.ExtendedAnswerProvider: can't find referenced class com.crashlytics.android.answers.shim.KitEventLogger
Warning:io.branch.referral.ExtendedAnswerProvider: can't find referenced class com.crashlytics.android.answers.shim.AnswersOptionalLogger
Warning:io.branch.referral.ExtendedAnswerProvider: can't find referenced class com.crashlytics.android.answers.shim.KitEventLogger
Warning:io.branch.referral.ExtendedAnswerProvider: can't find referenced class com.crashlytics.android.answers.shim.KitEvent
Warning:there were 14 unresolved references to classes or interfaces.
Warning:Exception while processing task java.io.IOException: Please correct the above warnings first.
Error:java.lang.RuntimeException: Job failed, see logs for details
Error:java.io.IOException: Please correct the above warnings first.

add
-dontwarn com.crashlytics.android.answers.shim.**
to the proguard file

If you want to exclude Crashlytics from Proguard you can use these 2 lines
-keep class com.crashlytics.** { *; }
-dontwarn com.crashlytics.**
Check out Fabric's Proguard page

ProGuard error trying to generate signed apk

This is my log. the problem happens when I try to generate signed apk:
Initializing...
Note: the configuration refers to the unknown class 'com.sourcey.example.SignupActivity'
Note: com.google.android.gms.internal.zzro calls 'Field.getType'
Note: butterknife.internal.ViewInjector calls 'Class.getEnclosingClass'
Warning:com.google.android.gms.common.GooglePlayServicesUtil: can't find referenced method 'void setLatestEventInfo(android.content.Context,java.lang.CharSequence,java.lang.CharSequence,android.app.PendingIntent)' in library class android.app.Notification
Warning:com.google.android.gms.gcm.zza: can't find referenced method 'void setLatestEventInfo(android.content.Context,java.lang.CharSequence,java.lang.CharSequence,android.app.PendingIntent)' in library class android.app.Notification
Note: com.google.android.gms.maps.internal.zzy: can't find dynamically referenced class com.google.android.gms.maps.internal.CreatorImplGmm6
Note: com.google.android.gms.maps.internal.zzy: can't find dynamically referenced class com.google.android.gms.maps.internal.CreatorImpl
Note: org.apache.james.mime4j.storage.DefaultStorageProvider calls '(org.apache.james.mime4j.storage.StorageProvider)Class.forName(variable).newInstance()'
Note: there were 1 references to unknown classes.
You should check your configuration for typos.
(http://proguard.sourceforge.net/manual/troubleshooting.html#unknownclass)
Note: there were 1 classes trying to access generic signatures using reflection.
You should consider keeping the signature attributes
(using '-keepattributes Signature').
(http://proguard.sourceforge.net/manual/troubleshooting.html#attributes)
Note: there were 1 classes trying to access enclosing classes using reflection.
You should consider keeping the inner classes attributes
(using '-keepattributes InnerClasses').
(http://proguard.sourceforge.net/manual/troubleshooting.html#attributes)
Note: there were 2 unresolved dynamic references to classes or interfaces.
You should check if you need to specify additional program jars.
(http://proguard.sourceforge.net/manual/troubleshooting.html#dynamicalclass)
Note: there were 1 class casts of dynamically created class instances.
You might consider explicitly keeping the mentioned classes and/or
their implementations (using '-keep').
(http://proguard.sourceforge.net/manual/troubleshooting.html#dynamicalclasscast)
Warning:there were 2 unresolved references to library class members.
You probably need to update the library versions.
(http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedlibraryclassmember)
Warning:Exception while processing task java.io.IOException: Please correct the above warnings first.
:app:transformClassesAndResourcesWithProguardForRelease FAILED
Error:Execution failed for task ':app:transformClassesAndResourcesWithProguardForRelease'.
> java.io.IOException: Please correct the above warnings first.
Information:BUILD FAILED
Information:Total time: 22.714 secs
Information:1 error
Information:4 warnings
Information:See complete output in console
My module build.grade:
defaultConfig {
applicationId "com.sourcey.example"
minSdkVersion 15
//targetSdkVersion 22
targetSdkVersion 23
versionCode 28
versionName "3.0.2.1"
signingConfig signingConfigs.config
}
buildTypes {
release {
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
May be the problem is the warnings but I don't know
My project build.gradle:
dependencies {
classpath 'com.android.tools.build:gradle:2.1.0'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
Finally, my proguard-rules.pro:
-dontwarn butterknife.internal.**
-keep class **$$ViewInjector { *; }
-keepnames class * { #butterknife.InjectView *;}
-dontwarn butterknife.Views$InjectViewProcessor
-dontwarn com.gc.materialdesign.views.**
-dontwarn com.kosalgeek.**
-dontwarn org.apache.**
-dontwarn android.support.v4.**
Thanks for helping me!
Thanks a lot

You have 2 warnings originating from Google GMS services. To ignore them use the following configuration:
-dontwarn com.google.android.gms.**
There are also a few more notes that you should also take into account:
-keepattributes Signature,InnerClasses
The remaining notes are more or less harmless, but you may want to ignore them with appropriate -dontnote configurations.

Android - Assertj Android - Run error

I´m trying to run assertj-android but it send an error. (it runs fine with junit 4)
My Dependencies:
dependencies {
testCompile 'junit:junit:4.12'
androidTestCompile ('com.squareup.assertj:assertj-android:1.0.0'){
exclude group:'com.android.support', module:'support-annotations'
}
}
My Build type:
buildTypes {
debug {
signingConfig signingConfigs.debug
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
My progard-rules.pro:
## Assertj
-dontwarn org.assertj.**
-keep class org.assertj.** {*;}
And I get this error on run:
:app:proguardDebugAndroidTest
Warning:org.assertj.core.api.JUnitSoftAssertions: can't find superclass or interface org.junit.rules.TestRule
Warning:org.assertj.core.api.JUnitSoftAssertions$1: can't find superclass or interface org.junit.runners.model.Statement
Warning:org.assertj.core.api.JUnitSoftAssertions: can't find referenced class org.junit.rules.TestRule
Warning:org.assertj.core.api.JUnitSoftAssertions: can't find referenced class org.junit.runners.model.Statement
Warning:org.assertj.core.api.JUnitSoftAssertions: can't find referenced class org.junit.runner.Description
Warning:org.assertj.core.api.JUnitSoftAssertions: can't find referenced class org.junit.runners.model.Statement
Warning:org.assertj.core.api.JUnitSoftAssertions: can't find referenced class org.junit.runner.Description
Warning:org.assertj.core.api.JUnitSoftAssertions$1: can't find referenced class org.junit.runners.model.Statement
Warning:org.assertj.core.api.JUnitSoftAssertions$1: can't find referenced class org.junit.runners.model.MultipleFailureException
Warning:org.assertj.core.api.JUnitSoftAssertions$1: can't find referenced class org.junit.runners.model.Statement
Warning:org.assertj.core.internal.JavaBeanDescriptor: can't find referenced class java.beans.PropertyDescriptor
Warning:org.assertj.core.internal.PropertySupport: can't find referenced class java.beans.PropertyDescriptor
Warning:org.assertj.core.internal.cglib.core.DebuggingClassWriter$1: can't find referenced class org.assertj.core.internal.cglib.asm.util.TraceClassVisitor
Warning:org.assertj.core.internal.cglib.core.ReflectUtils: can't find referenced class java.beans.PropertyDescriptor
Warning:org.assertj.core.internal.cglib.core.ReflectUtils: can't find referenced class java.beans.IntrospectionException
Warning:org.assertj.core.internal.cglib.core.ReflectUtils: can't find referenced class java.beans.Introspector
Warning:org.assertj.core.internal.cglib.core.ReflectUtils: can't find referenced class java.beans.BeanInfo
Warning:org.assertj.core.internal.cglib.core.ReflectUtils: can't find referenced class java.beans.PropertyDescriptor
Warning:org.assertj.core.internal.cglib.core.ReflectUtils: can't find referenced class java.beans.BeanInfo
Warning:org.assertj.core.internal.cglib.core.ReflectUtils: can't find referenced class java.beans.PropertyDescriptor
Warning:org.assertj.core.internal.cglib.core.ReflectUtils: can't find referenced class java.beans.IntrospectionException
Warning:org.assertj.core.util.introspection.Introspection: can't find referenced class java.beans.Introspector
Warning:org.assertj.core.util.introspection.Introspection: can't find referenced class java.beans.BeanInfo
Warning:org.assertj.core.util.introspection.Introspection: can't find referenced class java.beans.PropertyDescriptor
Warning:org.assertj.core.util.introspection.Introspection: can't find referenced class java.beans.BeanInfo
Warning:org.assertj.core.util.xml.XmlStringPrettyFormatter: can't find referenced class org.w3c.dom.bootstrap.DOMImplementationRegistry
Warning:there were 59 unresolved references to classes or interfaces.
You may need to add missing library jars or update their versions.
If your code works fine without the missing classes, you can suppress
the warnings with '-dontwarn' options.
(http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedclass)
:app:proguardDebugAndroidTest FAILED
:app:newRelicDeinstrumentTask
[newrelic.info] Deinstrumenting...
Error:Execution failed for task ':app:proguardDebugAndroidTest'.
> java.io.IOException: Please correct the above warnings first.
Why?

Based on Proguard revision 1.2.0 and post in stackoverflow.
I needed to add testProguardFiles to my debug buildType because tests ignore proguardFiles attribute so it was ignoring my proguard setup:
buildTypes {
debug {
signingConfig signingConfigs.debug
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro', 'proguard-rules-debug.pro'
testProguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro', 'proguard-rules-debug.pro'"true"
}
}
And my proguard file:
## Assertj
-dontwarn org.assertj.core.**
-dontwarn org.junit.**
-dontwarn java.beans.**

Gradle Build Failure

My project compiles and executes well on debug mode but when i try to generate a signed apk, errors arise. This appears on the message log:
:app:proguardRelease
Warning:android.support.v4.app.DialogFragment: can't find referenced class android.support.v4.app.DialogFragment$DialogStyle
Warning:android.support.v4.app.FragmentTransaction: can't find referenced class android.support.v4.app.FragmentTransaction$Transit
Warning:android.support.v4.view.ViewCompat: can't find referenced class android.support.v4.view.ViewCompat$ResolvedLayoutDirectionMode
Warning:android.support.v4.view.ViewCompat: can't find referenced class android.support.v4.view.ViewCompat$LayoutDirectionMode
Warning:android.support.v4.view.ViewCompat: can't find referenced class android.support.v4.view.ViewCompat$LayerType
Warning:android.support.v4.view.ViewCompat: can't find referenced class android.support.v4.view.ViewCompat$AccessibilityLiveRegion
Warning:android.support.v4.view.ViewCompat: can't find referenced class android.support.v4.view.ViewCompat$ImportantForAccessibility
Warning:android.support.v4.view.ViewCompat: can't find referenced class android.support.v4.view.ViewCompat$OverScroll
Warning:android.support.v4.widget.DrawerLayout: can't find referenced class android.support.v4.widget.DrawerLayout$EdgeGravity
Warning:android.support.v4.widget.DrawerLayout: can't find referenced class android.support.v4.widget.DrawerLayout$LockMode
Warning:android.support.v4.widget.DrawerLayout: can't find referenced class android.support.v4.widget.DrawerLayout$State
Warning:there were 11 unresolved references to classes or interfaces.
You may need to add missing library jars or update their versions.
If your code works fine without the missing classes, you can suppress
the warnings with '-dontwarn' options.
(http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedclass)
Exception while processing task
java.io.IOException: Please correct the above warnings first.
at proguard.Initializer.execute(Initializer.java:473)
at proguard.ProGuard.initialize(ProGuard.java:233)
at proguard.ProGuard.execute(ProGuard.java:98)
at proguard.gradle.ProGuardTask.proguard(ProGuardTask.java:1074)
at com.android.build.gradle.tasks.AndroidProGuardTask.doMinification(AndroidProGuardTask.java:139)
at com.android.build.gradle.tasks.AndroidProGuardTask$1.run(AndroidProGuardTask.java:115)
at com.android.builder.tasks.Job.runTask(Job.java:48)
at com.android.build.gradle.tasks.SimpleWorkQueue$EmptyThreadContext.runTask(SimpleWorkQueue.java:41)
at com.android.builder.tasks.WorkQueue.run(WorkQueue.java:227)
at java.lang.Thread.run(Thread.java:745)
:app:dexRelease UP-TO-DATE
:app:crashlyticsStoreDeobsRelease
:app:crashlyticsUploadDeobsRelease
:app:validateExternalOverrideSigning
:app:packageRelease FAILED
Error:Execution failed for task ':app:packageRelease'.
> Unable to compute hash of /home/kombo/RAL/Mpasho/app/build/intermediates/classes-proguard/release/classes.jar
I have tried every possible way of remedying this by updating my build tools, using the latest gradle version, checking all the dependencies and the error still shows up.
I am pretty sure the v4 support library is present in the project since no errors arise in debug mode.

I also had this issue when upgrading everything that is built related to 23 (Android Libraries, SDK etc).
This proguard configuration fixed it for me:
-dontwarn org.apache.http.**
-dontwarn android.net.http.AndroidHttpClient
-dontwarn com.google.android.gms.**
-dontwarn com.android.volley.toolbox.**
Source

Turns out I had omitted the getDefaultProguardFile('proguard-android.txt') line on the proguard files and was just using proguard-rules.pro

added these two line in progaurd
-dontwarn android.net.http.AndroidHttpClient
-dontwarn com.google.android.gms.**
and it works..
It is related to library used in project.

The default ProGuard file already has a rule to ignore support library warnings. If you don't have it you can add to your file
-dontwarn android.support.**
but would be better to add the default one. See Proguard configuration#Android Developers

This also could happen due to errors/warnings related to included .jar files
Check in build output for proguard warnings/errors.
I had issue related to opencsv jar file. Hint by Lakedaemon in above comment helped me and its solved.

Try to look up in the whole error message. It may contain info that you include a library twice. This was the problem in my case and it was fixed after removing duplicated includes.

Try add this code in your proguard-rules.pro:
-ignorewarnings
It solved my problem.

I think your app build.gradle buildTypes > release > minifyEnabled is true
That cause you get this error message.
Avoid this error message, set buildTypes > release > minifyEnabled is false
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}

Android-Studio-1.2.RC Proguard warnings on Square's Okio library reference

WIth Android Studio: 1.2.RC
I enabled proguard in .gradle:
```
minifyEnabled=true
and added these rules to my proguard-rules.pro:
-dontwarn com.squareup.**
-dontwarn okio.**
and added these lint rules to my .gradle file:
warningsAsErrors false
abortOnError false
disable 'InvalidPackage'
```
But I still get these warning when I try to run the app in debug mode:
```
Warning: okio.DeflaterSink: can't find referenced class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
Warning: okio.Okio: can't find referenced class java.nio.file.Files
Warning: okio.Okio: can't find referenced class java.nio.file.Files
Warning: okio.Okio: can't find referenced class java.nio.file.Files
Warning: okio.Okio: can't find referenced class java.nio.file.Path
Warning: okio.Okio: can't find referenced class java.nio.file.OpenOption
Warning: okio.Okio: can't find referenced class java.nio.file.Path
Warning: okio.Okio: can't find referenced class java.nio.file.OpenOption
Warning: okio.Okio: can't find referenced class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
Warning: okio.Okio: can't find referenced class java.nio.file.Path
Warning: okio.Okio: can't find referenced class java.nio.file.OpenOption
Warning: okio.Okio: can't find referenced class java.nio.file.Path
Warning: okio.Okio: can't find referenced class java.nio.file.OpenOption
Warning: okio.Okio: can't find referenced class org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
Warning: there were 14 unresolved references to classes or interfaces.
You may need to add missing library jars or update their versions.
If your code works fine without the missing classes, you can suppress
the warnings with '-dontwarn' options.
(http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedclass)
:app:proguardDebug FAILED
```
It's so weird since I also added these rules/options to all my library modules that depend on OkHttp/Picasso, I don't know where went wrong, perhaps this is a Android Studio bug ? Does anyone have any clues to this problem ?
I have opened an issue on github.

You've disable warnings for
-dontwarn com.squareup.**
-dontwarn okio.**
But what about for packages (as seen in your posted log)
-dontwarn org.codehaus
-dontwarn java.nio
Either way, ignoring warnings is not a good approach.
Try keeping these classes from being minified like so:
-keep public class org.codehaus.**
-keep public class java.nio.**

Oh Christ, I forgot to specify the proguard file for my debug build, adding the 'proguardFiles' rule would solve the problem:
buildTypes {
release {
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
debug {
debuggable false
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
applicationIdSuffix ".debug"
}
}
One of those moments you searched hard for your keys and it's right in your pocket.