DexGuard Java.io.IOException: The Same Input Jar

I'm facing this issue when using dexguard > Task :app:dexguardStaging FAILED The TaskInternal.execute() method has been deprecated and is scheduled to be removed in Gradle 5.0.

Solution 1:

Please try below code & let me know if it works for you

Do changes in your gradle like this

apply plugin: 'com.android.application'

android {

    compileSdkVersion 26
    buildToolsVersion '26.0.2'
    defaultConfig {
        applicationId "com.example.testapp"
        minSdkVersion 16
        targetSdkVersion 26
        versionCode 1
        versionName "1.1"
        multiDexEnabled true  // put this line in your gradle
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    //put below code in your gradle
    dexOptions {
        preDexLibraries = false
        javaMaxHeapSize "4g"
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile 'com.android.support:multidex:1.0.2'  //put this dependencies in your gradle
    // Rest of your dependencies
}

& also changes in your application file.

public class TestApplication extends MultiDexApplication {

    @Override
    public void onCreate() {
        super.onCreate();
    }
}

&

In manifest file >> in application tag >> mention below line

android:name=".TestApplication"

Hope this will work for you & if it is work then let me know.