Obfuscation (minifyenabled True) Not Working In Debug And Release

April 16, 2024 Post a Comment

I cannot able to run apk using minifyEnabled true in Debug and Release mode.I have referred below links but none worked for me. 1.Android- Error:Execution failed for task ':app:tra

Solution 1:

Well... As you haven't mentioned yet, to the ant, to pro-guard your app, That's why it is not able to obfuscate it. Use explicitly useProguard true

Need a simple example of app gradle build file...? Find it below as it is of my project :

apply plugin: 'com.android.application'

android {
compileSdkVersion 26
defaultConfig {
    applicationId "com.xxxxxxxxxxcccccccvvvvvv.apps.firebase"
    minSdkVersion 16
    targetSdkVersion 26
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
    release {
        minifyEnabled true
        useProguard true
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        shrinkResources true
    }
}
}

dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:26.1.0'
implementation 'com.android.support:design:26.1.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.2'
implementation 'com.firebase:firebase-jobdispatcher:0.8.5'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}

Now what it means in wording : It will only obfuscate your code in release of your project; which means you have to build your release apk.

How to test...? obfuscation happened or not?

Here we go...

Unzip apk file from linux or mac os terminal as: unzip apk_name
You will get your project files extracted... find dex file
Use dex2jar to convert it into jar
Read that jar file with JD-UI app
You will see all your java classes and core code files
Yes.... look neat.... Its a code.... But with obfuscation

Hmmmm... Hope it helps

Edit : 2

In the pro-guard rules files... Do not try to program it like code, just keep some classes which are not so important as : -keep public class OpenSource

Thats it.

Edit : 3

Most importantly you should and must as a beginner use default pro-guard file set by android studio or whichever your IDE; while creating the project. like :

proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

Edit : 4

It is a good habit to create a new sample project, learn how to implement any concept, once we are hands on it and cleared the concept..., Open the main project and implement it within..., As ... As of now , we are mastered the concept.

Edit : 5

It is always recommended to use Android Studio than any other IDE as it is officially by google as android is.. And it must be latest and updated IDE with minimum api 26 enabled. as google made compulsory last week that to upload apps on google play apps must target api level 26.

Baca Juga

Also it helps to your project to get it build error free as all the latest dependencies are there along with patches.

Solution 2:

Try to delete the .idea and .gradle directory under your project root directory and restart your Android Studio and re-sync your project. And change your build.gradle settings as below:

android {
    ...
    compileSdkVersion 24
    buildToolsVersion "24.0.0"
    defaultConfig {
        ...
        targetSdkVersion 24 
        ...
    }
    ...
}

Double check all the libraries inside libs to see if you have any duplicate ones with compile xxx, because you have below library dependencies declaration.
```
compilefileTree(include: ['*.jar'], dir: 'libs')
```
This may cause the duplicate inclusion of libraries, for example, compile files('libs/gson-2.6.2.jar'). Try to remove all the duplicate libraries.

Solution 3:

ever considered upgrading from Android Studio 1.5.1 to 3.1.3 ??

and I've double-checked, that this is not a question from a few years ago.

it reads bad descriptor: charOffset, which hints for errors in the build.gradle... most likely, that the referenced proguard-android-optimize.txt does not even exist within the file-system.

you'd have to reference the ProGuard configuration rules alike:

proguardFile "${project.rootDir}/proguard-rules.pro"
// proguardFile "${project.rootDir}/some-more-rules.pro"
shrinkResources true
minifyEnabled true

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