TS2354 error: module 'tslib' cannot be found -- use moduleResolution: "node"

[ywzhaiqi]

tsconfig.json

{
  "compilerOptions": {
      "outDir": "dist",
      "module": "es2015",
      "target": "es2015"
  },
  "include": [
      "src"
  ]
}

src/test.ts

export default async function hello() {
  console.log('Hello world')
}

run rollup -c Error:

Error: rpt2: rollup-example/src/test.ts (3,23): semantic error TS2354 This syntax requires an imported helper but module 'tslib' cannot be found.

but change to rollup-plugin-typescript, run successful.

[ezolenko]

Could you post output of npm install and of npm list tslib?

What's your package.json look like?

[ywzhaiqi]

after remove node_modules and npm install, run the same error.

npm list tslib

`-- [email protected]
  `-- [email protected]

package.json

   "devDependencies": {
    "@types/rollup": "^0.41.1",
    "rollup": "^0.48.2",
    "rollup-plugin-json": "^2.3.0",
    "rollup-plugin-typescript2": "^0.5.0"
  },
  "dependencies": {}

[ezolenko]

Ah, I think you need "moduleResolution": "node", in your tsconfig.json.

[ywzhaiqi]

yes, it worked. thanks

[agilgur5]

Duplicate of #12 / #14