Schema migrations

[pascalw]

I'm trying to get schema migrations going by following the documentation at Rhomobile | Using Rhom in Ruby.

However, as soon as I add the on_migrate_source method in my app/application.rb the app crashes during startup with a 'stacklevel too deep' exception. I've traced it back to the following call in Rhodes.

!get_instance().get_app(APPNAME).on_migrate_source(source['migrate_version'], source)

Any insights on why this is happening? How is it supposed to work?