Failed to open APK in Rubymotion

Question

I'm getting the following error when running: bundle exec rake release on my RubyMotion Android app:

ziparchive W 08-24 13:55:26 89539 4680851 Unable to open '~/.rubymotion-android/sdk/platforms/android-31/android.jar': No such file or directory
error: failed to open APK: I/O error.
rake aborted!

Answer 1

Ok, I had the target_api_version set:

app.target_api_version = "30

But I should have set the api_version instead:

app.api_version = "30"