In order to run an Atelier application, you need a launch configuration. See Creating an Atelier Launch Configuration.
You can access a configuration in a number of ways, including:
When you run a launch configuration, the code executes without stopping, even if breakpoints have been set. To run stopping at breakpoints, see Debugging an Atelier Application.
Running and Debugging an Atelier Application
Creating an Atelier Launch Configuration
Debugging an Atelier Applications