When I generate an android app bundle it fails with "buildOutput.apkInfo must not be null"

Question

Android studio completes the building process then says that build failed

"I have tried cleaning the project & rebuilding it but it ends up with the same result"

output:

buildOutput.apkInfo must not be null

EDIT: I figured my problem here and it seems like some how my package changed and I fixed it with reversing the changes.

If you came here to solve a similar problem check this link first Cause: buildOutput.apkData must not be null

Answer 1

For Android Studio 3.5 Update. (APK signed issue)

I had the same issue. I have resolved this issue by modifying the Destination Folder.

Step by step

1. Build
2. Generate signed Bundle/APK
3. Select Android App Bundle or APK
4. Add Keystore
5. On Destination Folder: Change c:\user\folder\project\app to c:\user\folder\project\

Summary

Before

c:\user\folder\project\app

After

c:\user\folder\project\

Answer 2

In my case, just simple steps started to work:

1. Delete the build folder of App and inner Modules.
2. Clean Project.
3. Rebuild Project.

That's it.