Why won't my new Svelte project run unit tests?

I've been doing a Svelte project for work, and therefore experimenting with it in my free time. I noticed that after generating a brand new project, using the Svelte instructions, the unit test command does not work. I got so frustrated with this I opened up a bug report . The error I see is something like this: 12:55:39 PM [vite] (ssr) Error when evaluating SSR module…