"Must use import to load ES Module" problem

With node 12 , when I tries the sample I got the following error. It looks like it cannot import the module. Does it support node 12?

$> node -r esm
Welcome to Node.js v12.16.1.
> import LatLon from 'geodesy/latlon-spherical.js';
.../node_modules/geodesy/latlon-spherical.js:1
Uncaught:
Error [ERR_REQUIRE_ESM]: Must use import to load ES Module: .../node_modules/geodesy/latlon-spherical.js
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1174:13) {
  code: 'ERR_REQUIRE_ESM'
}

[strarsis]

I get the same error with node v15.3.0 and with the recommended flags enabled.

node --experimental-modules -r esm test.js

Error [ERR_REQUIRE_ESM]: Must use import to load ES Module: [...]/node_modules/geodesy/latlon-ellipsoidal-vincenty.js
    at new NodeError (node:internal/errors:278:15)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1119:13) {
  code: 'ERR_REQUIRE_ESM'
}

[mickeyjohn]

Hi,

I got the same error message when trying to use V2 on CommonJs modules. Thus, I migrated to using v2 with some code changes as examples below. Basically, in recent Node versions > v12.x, you can use dynamic module loading directly. Note that dynamic ES modules loading works asynchronously.

async function Func() {
  // Dynamically load ES geodesy v2 modules.
  const llsMod = await import('geodesy2/latlon-spherical.js');
  LatLonSP = llsMod.default;
  const utmMod = await import('geodesy2/utm.js');
  Utm = utmMod.default;
  LatLon = utmMod.LatLon;

 // Then use as:
  const utm1 = new Utm(..);
  const latlng = new LatLon();
  ... 
}