# Execution failed for task ':app:transformClassesWithMultidexlistForDebug'.

**URL:** https://discuss.gradle.org/t/execution-failed-for-task-transformclasseswithmultidexlistfordebug/31120
**Category:** Help/Discuss
**Tags:** android
**Created:** [March 26, 2019, 7:28am UTC](https://discuss.gradle.org/t/execution-failed-for-task-transformclasseswithmultidexlistfordebug/31120 "2019-03-26T07:28:45Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![Ketuzzz](https://avatars.discourse-cdn.com/v4/letter/k/7feea3/32.png) [@Ketuzzz](https://discuss.gradle.org/u/Ketuzzz)
#### Post date: [March 26, 2019, 7:28am UTC](https://discuss.gradle.org/t/execution-failed-for-task-transformclasseswithmultidexlistfordebug/31120/1 "2019-03-26T07:28:46Z")

</div>

ask :app:transformClassesWithMultidexlistForDebug FAILED  
AGPBI: {“kind”:“error”,“text”:“Program type already present: com.shopapp.gateway.BuildConfig”,“sources”:[{}],“tool”:“D8”}

FAILURE: Build failed with an exception.

- What went wrong:  
Execution failed for task ‘:app:transformClassesWithMultidexlistForDebug’.

> com.android.build.api.transform.TransformException: Error while generating the main dex list:  
> Error while merging dex archives:  
> Program type already present: com.shopapp.gateway.BuildConfig  
> Learn how to resolve the issue at [Ajouter des dépendances de build &nbsp;|&nbsp; Android Developers](https://developer.android.com/studio/build/dependencies#duplicate_classes).