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From https://2ality.com/2019/04/nodejs-esm-impl.html Node 12 should support es6 modules; however, I just keep getting the error:
Question: How do I make a MVP of using es6 modules in node 12?
package.json
{ "name": "dynamic-es6-mod", "version": "1.0.0", "description": "", "main": "src/index.mjs", "scripts": { "test": "echo \"Error: no test specified\" && exit 1", "start": "node src/index.mjs" }, "keywords": [], "author": "", "license": "ISC", "dependencies": { "globby": "^10.0.1" } } $ node -v $ 12.6.0 $ npm run start internal/modules/cjs/loader.js:821 throw new ERR_REQUIRE_ESM(filename); Error [ERR_REQUIRE_ESM]: Must use import to load ES Module: /Users/dev/dynamic-es6-mod/src/index.mjs at Object.Module._extensions..mjs (internal/modules/cjs/loader.js:821:9) at Module.load (internal/modules/cjs/loader.js:643:32) at Function.Module._load (internal/modules/cjs/loader.js:556:12) at Function.Module.runMain (internal/modules/cjs/loader.js:839:10) at internal/main/run_main_module.js:17:11 
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Node js doesn't support ES6 import directly. If we try to use import for importing modules directly in node js it will throw out the error. For example, if we try to import express module by writing import express from 'express' node js will throw an error as follows: Node has experimental support for ES modules.
You can solve the "[ERR_REQUIRE_ESM]: require() not supported" by doing one of two things: Use ESM - use import foo from 'foo' , instead of const foo = require('foo') and add the following line to your package. json file: "type": "module" . Downgrade to the last version of the package that is built with CommonJS .
Authors can tell Node. js to use the ECMAScript modules loader via the . mjs file extension, the package. json "type" field, or the --input-type flag.
All you have to do is adding the flag --experimental-modules that supports the new es6 import/export statement also the order is important as the following.
"start": "node --experimental-modules src/index.mjs " In Node 14 I solved it with workaround.
source of workaround: https://github.com/eslint/eslint/issues/12319#issuecomment-535799024
short summary:
package.json doesn't support ESMsrc directory place package.json with { "type": "module" } PS: ESLint team can't solve it easily right now, just because of core design... :(
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