Question:

When I attempt to run my project, I receive a message, "Unable to start runtime due to incomplete configuration," and then a dialogue titled, "Runtime Configuration" appears. Why is this occurring?

Answer:

This dialogue is appearing because you have not specified what your application should be running. Please look at the following documentation:

Project | Project Properties | Run | Help

The help will provide information regarding how to configure your project to be able to run, depending on the type of project you created.