Ionic Package Service: Android build fails

Android build fails with the following output:

ANDROID_HOME=/opt/android-sdk
JAVA_HOME=/usr/lib/jvm/java-8-oracle
Error: Could not find gradle wrapper within Android SDK. Might need to update your Android SDK.
Looked here: /opt/android-sdk/tools/templates/gradle/wrapper

Anyone else experiencing that?

I reported this as a bug to the ionic team.

There were several reports of another error with Ionic Package earlier: Ionic Package: Error building in ionic cloud getting error Might need to update your Android SDK