Can't use an import statement outside a module?

• ts-node

  20 12,562 5.5 TypeScript

  TypeScript execution and REPL for node.js

  

By default, Node assumes you're targeting CJS. This error is a node error telling you that "import ..." is a syntax error when you're configured for running CJS. Based on your description, I suspect you have "module": "es2015" or higher in your tsconfig. This tells typescript to output files that are compatible with ESM. At this point, if you change this to "module": "commonjs", you'd likely have a working set of code (this is my recommended approach). But... you took the experimental long route 😀. By adding "type": "module", you told node to run it as if it were ESM. Now you have Node and TS targeting ESM, but ts-node doesn't have an easy way of being compatible with ESM. Switching the loader to use ts-node/esm is then what put all 3 tools into the same ecosystem configuration. Note that this config is a bit fragile, the hooks are experimental, so Node doesn't follow semver with them. Minor version changes in node may break compatibility. Which leads into...

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