Getting 'app:transformClassesWithDexForDebug' error on compiling the project having useLibrary 'org.apache.http.legacy' in build.gradle

Question

I\'m developing an app in which I\'m using this library.

On compiling the project, this error containing TransformException and RuntimeException<

Answer 1

I think you missed to add MultiDexApplication in your manifest.

    <application
            android:name="android.support.multidex.MultiDexApplication" >
        ...
    </application>

If you missed it. Add it and clean and rebuild project.

If you use Application Class, your application class should extend MultiDexApplication not Application.

class MyApplication extends MultiDexApplication

Reference: https://developer.android.com/studio/build/multidex.html

Hope it helps :)

Answer 2

Put this code in your first activity(starting activity of the app):

public class YouApplication extends Application {

    @Override
    protected void attachBaseContext(Context base) {
        super.attachBaseContext(base);
        MultiDex.install(this);
    }
}

Answer 3

You are getting

DuplicateFileException: Duplicate files copied in APK

Make sure Same dependencies are calling or not .

Answer 4

Pull exclude out of the dependencies section and put in configurations. e.g.

dependencies {
    ...
    compile 'org.apache.httpcomponents:httpclient-android:4.3.5.1'
    compile 'org.apache.httpcomponents:httpmime:4.3.5'
    ...
}

configurations {
    all*.exclude group: 'org.apache.httpcomponents',module: 'httpclient'
}

Answer 5

From the log:

Error:Execution failed for task ':app:transformResourcesWithMergeJavaResForDebug'.
> com.android.build.api.transform.TransformException: com.android.builder.packaging.DuplicateFileException: Duplicate files copied in APK log4j.properties
    File1: C:\Users\user\.gradle\caches\modules-2\files-2.1\org.brunocvcunha.inutils4j\inutils4j\0.4\566b82b1e70d7ebb8d1d3bb513d4bbf7913b118b\inutils4j-0.4.jar
    File2: C:\Users\user\.gradle\caches\modules-2\files-2.1\org.brunocvcunha.ghostme4j\ghostme4j\0.2\d44c3633f23975c355c89192d6e8daa9ce549b2d\ghostme4j-0.2.jar

It looks like you need to exclude log4j.properties from your project because it reside in both of the libraries (inutils4j and ghostme4j). You can try using:

android {
...
    packagingOptions {
         exclude '**/log4j.properties'
    }
...
}

Read more about PackagingOptions.