Java.util.zip.zipexception: Duplicate Entry Support V4 Printhelper$1.class

I am not sure what this error means. Error:Execution failed for task': eCampus : packageAllDefaultFlavorDebugClassesForMultiDex'. > java.util.zip.ZipException: duplicate entry:

Solution 1:

I meet the same error, and I solve it, but I just give u that my case;

my bulid.gradle:

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile ('com.android.support:appcompat-v7:22.0.0') 
    compile files('libs/android-async-http-1.4.8.jar')
    compile files('libs/android-support-v4.jar')
    compile files('libs/universal-image-loader-1.9.4-with-sources.jar')
}

the error for is the com.android.support:appcompat-v7:22.0.0 include the support-v4.jar, so I remove it;

solve build.gradle:

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile ('com.android.support:appcompat-v7:22.0.0') {
        exclude module: 'support-v4'
    }
    compile files('libs/android-async-http-1.4.8.jar')
    compile files('libs/android-support-v4.jar')
    compile files('libs/universal-image-loader-1.9.4-with-sources.jar')
}

so maybe u should check ur dependencies, maybe ur compile files have two files include support-v4