I have just created a very simple build on VSTS. I used the blank template, chose the "Hosted VS2017" agent, specified the appropriate source repository, and added one task that simply does an NPM install. Then I queued it up with the "Hosted VS2017" agent.
After doing this it is waiting for an available agent apparently indefinitely. Right above where it says "1 position in queue" it has "Hosted Agent" which is a link. If I click it, I am taking to a page showing:

Clicking on the "please migrate" text takes me to here, but that doesn't seem to be much help. It seems to indicate that using the Hosted VS2017 would be the right agent.
Any ideas on how to properly set up my build? I don't feel I need to migrate anything as I can just start from scratch.