Importing adapter-begin fails with "type": "module"

[thislooksfun]

Describe the bug
I'm trying to add adapter-begin to my freshly-created SvelteKit project, but now svelte-kit build fails with

Cannot find module '<snip>/node_modules/@sveltejs/adapter-begin/index.js' imported from <snip>/svelte.config.js
Did you mean to import @sveltejs/adapter-begin/index.cjs?

Changing it to importing @sveltejs/adapter-begin/index.cjs also fails with the message

Package subpath './index.cjs' is not defined by "exports" in <snip>/node_modules/@sveltejs/adapter-begin/package.json imported from <snip>/svelte.config.js

Logs
N/A

To Reproduce

1. Create a fresh SvelteKit project, making sure to enable TypeScript
2. Install adapter-begin
3. Run npm run build

Expected behavior
I expect to be able to import and use a first-party adapter after creating a project from the first-party scaffold.

Stacktraces
N/A

Information about your SvelteKit Installation:
N/A

Severity
It's blocking my intended use case entirely.

Additional context
n/A

[macdaddyaz]

I'm experiencing the same issue. Trying to set up a brand new app w/ SvelteKit & Begin. The app will not start locally, and will not deploy to Begin.

[benmccann]

There's a new version of the Begin adapter. Please take a look at https://github.com/architect/sveltekit-adapter