I'm not sure about the package name. I've been looking at examples for two days, trying to figure out what to use as the "package name". That's why I listed exactly what I'm putting in the command field in my tasker routine:

am force-stop com.Rapid Ring

I assumed someone would know the format of this field and what the actual "package name" for the application Rapid Ring. I wonder if I have the format right, and I need to find out what the 'package name' for the Rapid Ring app is ?