Once it's finished starting (this may take a while), you'll be able to enter sbt commands. You can compile your project using `compile` and run the tests with `test`. Note that if compilation fails, no tests will be run. The first time you will run test in an assignment you should see many errors: that's normal, your job is to make the tests pass! To do this, it's useful to understand in details what the test output means, here's an example: