Not able to bundle react component with zustand when using Rollup

[tillganster]

I have a react component which is bundled using rollup. Currently I am trying to integrate zustand into this component. Unfortunatly I am getting the following error:

[!] RollupError: Could not resolve "./react.mjs" from "node_modules/zustand/esm/index.d.mts"

Having a look into node_modules/zustand/esm shows that there is no react.mjs. Is this a problem of my rolllup configuration or a bug in zustand ?

[dbritto-dev]

@tillganster weird, should be there

[tillganster]

Seen here in code Tab on npm, which is the same in my local machine: https://www.npmjs.com/package/zustand/v/4.4.7?activeTab=code

[dai-shi]

https://www.typescriptlang.org/docs/handbook/modules/reference.html#file-extension-substitution

We expect it to look for react.d.mts. I'm not 100% happy with the current output. I hope tsc has an option to emit with changing the extension, or even bundle TS files.

That said, such a rollup error hasn't been reported AFAIR. Is it particularly a new version of rollup?