Question: The following error occur when I tried to Generate Signed Bundle. Note: Error occurs after I updated my android studio 3.6.3 to version 4.0 and Gradle build to 6.1.1.
\* What went wrong:
Execution failed for task ':app:signReleaseBundle'.

> 
> A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
>  'other' has different root
> 
> 
>

Answer: 
This works for `APK` but for `AAB` You must have the **keystore** file and generated **APK FOLDER** on the same drive.
First change path of past version to another drive:

[![enter image description here](https://i.stack.imgur.com/llvhO.jpg)](https://i.stack.imgur.com/llvhO.jpg)

And key store path and destination folder must be in same folder:

[![enter image description here](https://i.stack.imgur.com/47MhG.jpg)](https://i.stack.imgur.com/47MhG.jpg)