Unknown compiler option 'lib' when running demo.

[Taji]

taji:~/workspace (master) $ npm install -g ts-node
taji:~/workspace (master) $ npm install
taji:~/workspace (master) $ ts-node demo/index.ts

/home/ubuntu/.nvm/versions/node/v7.4.0/lib/node_modules/ts-node/src/index.ts:199
      throw new TSError(formatDiagnostics(configDiagnostics, cwd, ts, 0))
            ^
TSError: ⨯ Unable to compile TypeScript
Unknown compiler option 'lib'. (5023)

I'm running :
ts-node v2.0.0
node v7.4.0

Looking at the tsconfig.json file:

{
  "compilerOptions": {
    "target": "es5",
    "module": "commonjs",
    "sourceMap": true,
    "experimentalDecorators": true,
    "outDir": "./dist",
    "lib": ["es2015", "dom"]
  },
  "exclude": [
    "typings/browser.d.ts",
    "typings/browser",
    "dist",
    "node_modules",
    ".vscode"
  ]
}

Thinking the problem is the lib parameter in tsconfig.json. Any ideas?

[Sam Verschueren]

Try upgrading TypeScript.

[Taji]

Running 2.1.5 now. Should I upgrade to RC 2.2?

[Sam Verschueren]

Not sure if ts-node is picking up the correct version then...

[Taji]

Figured it out.

You have to install typescript globally to get ts-node to run the demo/index.ts:

npm install -g typescript

I had only installed it with the local package.json (npm install).

Thanks for the tip. :-)

[Deepak Kumar]

i also have the same problem . i have done
npm install -g typescript
and my current version is 2.6.2 but still it is giving tsc : error TS5023: Build:Unknown compiler option 'lib' error . Please help.