You uploaded an APK that was signed in debug mode. You need to sign your APK in release mode error

Change to: signingConfig signingConfigs.release

from signingConfig signingConfigs.debug

in your build.gradle app level

I don't know how you do that in Maven, but you need to compile your app with a release keystore. You can create one with keytool, which is available in your Java bin folder:

$ keytool -genkey -v -keystore my-release-key.keystore
-alias alias_name -keyalg RSA -keysize 2048 -validity 10000

When creating it, you must supply two passwords, one for the keystore and one for the key. When your keystore is created, you can use the Eclipse Export wizard to compile your app in release mode.

For further details, please refer to http://developer.android.com/tools/publishing/app-signing.html#releasemode

Always create your keystore with name and alias containing "release" not "debug". If you are having the "You uploaded an APK that was signed in debug mode. You need to sign your APK in release mode error" it's certain that you are using default keystore which is 'debug.keystore' hence generating apk in debug mode.

Solution

1. Generate new keystore
2. Give reference in build.gradle file
3. Change build variant to 'release'
4. Build

this should fix the issue.