Hi there,
Sorry for the long delay! So basically the issue is that the BITRISEIO_ANDROID_KEYSTORE_URL environment variable isn’t a path to the keystore file on the build machine, but a URL. I would suggest to remove the apk signing from the gradle file and use the sign-apk step instead, but as this wouldn’t be an option for you a solution that comes to my mind would be to have either a Script step or our File Downloader step to download the keystore file. You can set an environment variable as the target path for both cases and use this variable in your build.gradle file.
eg.: have a DOWNLOADED_KEYSTORE_PATH variable with the desired download location and use
curl -o $DOWNLOADED_KEYSTORE_PATH $BITRISEIO_ANDROID_KEYSTORE_URL
Or
Set the Download source url input of the File Downloader step to $BITRISEIO_ANDROID_KEYSTORE_URL and the Download destination path to $DOWNLOADED_KEYSTORE_PATH
After that you can update the gradle file to have
def keystorePath = System.getenv("DOWNLOADED_KEYSTORE_PATH")
Let me know if you’d have any issues or questions about these!