Hello, I'm am trying to get https://github.com/nextjs/saas-starter running, but running into the following error when opening the home page:

PS C:\Users\jmd50\Documents\Projects\Web\vercel-saas-template\saas-starter-2> pnpm dev

> @ dev C:\Users\jmd50\Documents\Projects\Web\vercel-saas-template\saas-starter-2
> next dev --turbopack

   ▲ Next.js 15.1.1-canary.5 (Turbopack)
   - Local:        http://localhost:3000
   - Network:      http://192.168.86.67:3000
   - Environments: .env
   - Experiments (use with caution):
     · ppr

 ✓ Starting...
 ✓ Compiled in 177ms
 ✓ Ready in 1021ms
 ○ Compiling / ...
 ✓ Compiled / in 1972ms
 ⨯ ./components/ui/dropdown-menu.tsx:4:1
Module not found: Can't resolve '@radix-ui/react-dropdown-menu'
  2 |
  3 | import * as React from "react"
> 4 | import * as DropdownMenuPrimitive from "@radix-ui/react-dropdown-menu"
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  5 | import {
  6 |   CheckIcon,
  7 |   ChevronRightIcon,


https://nextjs.org/docs/messages/module-not-found

I've tried starting from scratch, reinstalling all packages, reinstalling just @radix-ui/react-dropdown-menu, downgrading, etc. All to no avail.

Any tips or tricks would be appreciated!