The error is ours, not yours. Sorry for the confusion.
We've made some changes to the Service template which are meant to simplify usage. However we neglected to update the tutorial accordingly.
Note that in the palette, right next to the Basic/Service template there's also a Basic/Secure Service template. The Service template discussed in the tutorial, has been renamed Secure Service, and the new Service template does not have the same pre-defined internal structure, but as mentioned in the (green) note on the same page of the tutorial, this pre-defined structure is NOT required for the service to function, it is just a recommendation.
You can use of any of the following options, in order to continue, as any one of them will have the same result at runtime:
For best results, use the Firefox browser..