Migration of created-react-app to vite.js resulted in Crbug/1173575 error

I tried migrating my React app, which was created using create-react-app, to use Vite. I followed a variety of sources of guidance, including this.

But now when I try running npm run start, I get this strange error in the devtools console. Any idea what would be causing this?

crbug/1173575, non-JS module files deprecated.
(anonymous) @ VM10:161

I looked at all the suggestions here and none of them seemed to help in my particular situation. For example, no launch.json file was created; and the DevTools Network tab already shows No throttling.

Another clue is that when I click on VM10:161, I see the contents of a script VM10, which contains a js class called loadTimeData.