ERR_REQUIRE_ESM

[jeremycaris]

I just started with a fresh copy of the understrap-child theme, ran npm install, and then npm run watch. I get an error and it crashes. Looks like the error is specifically related to loading the postcss-cli module.

Error [ERR_REQUIRE_ESM]: Must use import to load ES Module: /node_modules/postcss-cli/index.js
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1174:13)
at Module.load (internal/modules/cjs/loader.js:1002:32)
at Function.Module._load (internal/modules/cjs/loader.js:901:14)
at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:74:12)
at internal/main/run_main_module.js:18:47 {
code: 'ERR_REQUIRE_ESM'
}
ERROR: "css-postcss" exited with 1.
ERROR: "css" exited with 1.
[nodemon] app crashed - waiting for file changes before starting...
[nodemon] clean exit - waiting for changes before restart

Please advise. Thank you!

[jeremycaris]

Nevermind! I needed to update node.js and npm themselves. All good now.