[Android] Sign APK Step Error: unsupported protocol scheme "". Fail using existing release .keystore file

[friederikewild]

Searching through the forum history, I found this old question by @danielwilson1702
1 that sounds similar and didn’t end in a confirmed solution? But maybe it really was different.

Can't create a release apk with keystore file

From the log of the build: Caused by: java.lang.IllegalArgumentException: Keystore file not set for signing config release Are you sure that you reverted the build.gradle changes (the ones mentioned here http://devcenter.bitrise.io/android/code-signing/#1-specify-code-sign-configuration-in-your-project )? It seems your build.gradle is still configured to use a keystore file. I’d suggest you to remove the signingConfigs section from there (e.g. https://github.com/bitrise-samples/sample-apps-an…