Running vanilla using node v14, get ERR_PACKAGE_PATH_NOT_EXPORTED

[opticode]

Hi there

I am using valtio in a react app and love it! However, I am trying to use the VS Code "code runner" extension to run some vanilla experimental code, but get the error below, which makes no sense to me. The "package.json" is there as expected, and has exports properly defined as expected (it's the latest valtio version).

Here is the bit of my code that throws the error, and the output is below that:

import { proxy, subscribe, snapshot } from "valtio/vanilla";

[Running] node "d:\work\qfin\react-vc\src\exp\valtio_exp.mjs"
internal/process/esm_loader.js:74
    internalBinding('errors').triggerUncaughtException(
                              ^

Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: Package subpath './vanilla.js' is not defined by "exports" in d:\work\qfin\react-vc\node_modules\valtio\package.json imported from d:\work\qfin\react-vc\src\exp\valtio_exp.mjs
    at throwExportsNotFound (internal/modules/esm/resolve.js:290:9)
    at packageExportsResolve (internal/modules/esm/resolve.js:513:3)
    at packageResolve (internal/modules/esm/resolve.js:644:14)
    at moduleResolve (internal/modules/esm/resolve.js:696:18)
    at Loader.defaultResolve [as _resolve] (internal/modules/esm/resolve.js:810:11)
    at Loader.resolve (internal/modules/esm/loader.js:86:40)
    at Loader.getModuleJob (internal/modules/esm/loader.js:230:28)
    at ModuleWrap.<anonymous> (internal/modules/esm/module_job.js:56:40)
    at link (internal/modules/esm/module_job.js:55:36) {
  code: 'ERR_PACKAGE_PATH_NOT_EXPORTED'
}

[dai-shi]

Hmm, I know this is related with "exports" in package.json, but not sure what is wrong.
("default" cjs can't be used for mjs??)
We need someone to help on this.

Meanwhile, does this work?

import { proxy, subscribe, snapshot } from "valtio";

Or the same thing?

[opticode]

Same issue unfortunately. I also tried this parameter suggested online, but without success:
node --es-module-specifier-resolution=node "d:\work\qfin\react-vc\src\valtio_exp.mjs"

By the way, this is more of a "nice-to-have" and is not essential to solve by any means :)