Program type already present: BuildConfig

Question

I'm trying to generate a release build but im not able because of mutidex issues my project has all the multidex enabled and dependencies added

The error i'm receiving is :

Execution failed for task ':app:transformClassesWithMultidexlistForRelease

Caused by: com.android.build.api.transform.TransformException: Error while generating the main dex list.

and aslo:

Caused by: com.android.tools.r8.errors.CompilationError: Program type already present: com.myapp.BuildConfig

Answer 1

I had this problem after an android x upgrade in android studio. To fix this I went to File->Open and opened the android folder within my current flutter project. I was then able to go to Build->Clean Project as suggested by @Seymour Mammadli.

Hopefully this helps someone with the same issue.

Answer 2

You are getting this error because you a have library module which has the same package name as the app module.

The solution would be to change package name of your library module. You can follow the accepted answer in this SO which describes how to change the package name in android studio.

Answer 3

Just goto tools>Flutter>Flutter clean in android studio. It'll resolve the issue. (If you are working with flutter)

Answer 4

I encountered the issue building a Flutter application and I resolved it following the official guide: https://developer.android.com/studio/build/multidex

You simply have to:

0. (Android: Go to Refactor > Migrate to AndroidX
(If you are on a Flutter project, to migrate the module, you have to go to Tools > Flutter > Open for Editing in Android Studio

1. (Both) Modify the module-level build.gradle file to enable multidex and add the multidex library as a dependency, as shown here:

android {
    defaultConfig {
        ...
        minSdkVersion 15 
        targetSdkVersion 28
        multiDexEnabled true
    }
    ...
}

dependencies {
  implementation 'com.android.support:multidex:1.0.3'
}

2. (non-Flutter) If you do not override the Application class, edit your manifest file to set android:name in the <application> tag as follows:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.myapp">
    <application
            android:name="android.support.multidex.MultiDexApplication" >
        ...
    </application>
</manifest>

2. (Flutter) If you do not override the Application class, edit your manifest file to set android:name in the <application> tag as follows:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.myapp">
    <application
            android:name=".App" >
        ...
    </application>
</manifest>

3.(Flutter) Create a custom class under project/android/app/src/main/[java or kotlin folder]/[your/package/appName]
kotlin version: App.kt

package your.package.appName

import io.flutter.app.FlutterApplication
import android.content.Context
import androidx.multidex.MultiDex

class App : FlutterApplication() {

    override fun attachBaseContext(base: Context) {
        super.attachBaseContext(base)
        MultiDex.install(this)
    }

}

java version: App.java

package your.package.appName;

import io.flutter.app.FlutterApplication;
import android.content.Context;
import androidx.multidex.MultiDex;

public class App extends FlutterApplication {

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

}

4. (Both) Celebrate if you did it!! :D

For more info, check out the official guide ;)
https://developer.android.com/studio/build/multidex

Answer 5

In my case It was happening when I try to run older project on new installed Android studio The problem solved by running Build->Clean Project

Answer 6

Error: Program type already present: somemodule/BuildConfig

Cause

In my case I had a (hidden) circular dependency which Android Studio did not find:

1. testutils/build.gradle uses implementation project(':somemodule')

2. somemodule/build.gradle had `androidTestImplementation project(":testutils")

Solution

• in my case the second dependency was not neccessary so I removed it