Run the following code inside android/app folder
keytool -genkeypair -v -storetype PKCS12 -keystore bdbox_version_2_3.keystore -alias bdbox_version_2_3 -keyalg RSA -keysize 2048 -validity 10000
keytool -export -rfc -keystore bdbox_version_2_3.keystore -alias bdbox_version_2_3 -file upload_certificate.pem
cd android/
./gradlew clean
./gradlew bundleRelease