Essentials page gives a 404

I’m following the Get Started section, and unable to proceed, as the essentials page on my project gives me a 404. I think I’ve done everything word for word.

http://localhost:8080/cms/ works as expected. I can log in and all.

I’m running this on OS X. Here is the page I am stuck on because of this, where it calls out navigating to the essentials page:

I’m guessing this is the same person as from stack overflow? Just for completeness I will add here that you already found it was because of an incorrect Java version.

Yes, thank you. I there are way to detect problems like that? Like a log for errors?