Navigation will not list in localhost test site

I am building my first site in Statamic. Everything seems to work fine on my localhost / MAMP environment, except for {{ nav }}. I have tried various examples copied from the support docs to echo the list of folders in _content but nothing seems to work. If I type in a page name, it displays fine. It simply won't list the content in navigation. Are there any common mistakes I should look for first?

Answered by Kevin Tracy!
>>>>>>> Answered <<<<<<<
5 Replies