Migration assistant is stuck

I am using migration assistant to transfer information from a MacBook Pro to a new Mac air. I was able to get the MacBook Pro to show up on the new computer. It has been stuck on “checking user’s MacBook Pro“ for a long time. I understand it can take a long time to transfer information, but I don’t think I’m even that far. I have turned off the firewall on the old computer. They are sitting next to each other physically and are on the same Wi-Fi network. Any other suggestions?