What this error means
The app bundle was built with the debug signing config. Google Play only accepts release builds signed with your upload key.
Why it happens
The upload is a debug-signed APK or app bundle. Play only accepts a release build signed with the upload key.
The message tools print
Google Api Error: Invalid request - You uploaded an APK or Android App Bundle that was signed in debug mode. You need to sign your APK or Android App Bundle in release mode.How to fix it
- Build the release variant (bundleRelease) with a signing config that uses your upload keystore.
Check a log that shows this
Paste the failing step into the build error explainer. It matches this message, and any others in the same log, in your browser. Nothing is uploaded.