title: Warning: Cannot find parent tsconfig.json (WebStorm 2016.3.2)
body: <p>Using TypeScript 2.1.4 and WebStorm 2016.3.2, I'm getting this error:
  <code>Warning: Cannot find parent tsconfig.json</code> in certain files.</p>
  
  <p>It compiles fine without this issue if I call <code>tsc</code> manually, but it in the IDE it causes some ES6 features to go unrecognized (Promise, Map, etc.).  </p>
  
  <p>Here's the tsconfig:</p>
  
  <pre class="lang-json prettyprint-override"><code>{
    "compilerOptions": {
      "target": "es6",
      "lib": ["es6"],
      "module": "commonjs",
      "moduleResolution": "node",
      "sourceMap": false,
      "emitDecoratorMetadata": true,
      "experimentalDecorators": true,
      "removeComments": false,
      "noImplicitAny": true,
      "suppressImplicitAnyIndexErrors": true
    },
    "files": [
      "app/**/*.ts"
    ]
  }
  </code></pre>
  
  <p>I know this has been mentioned previously: <a href="https://stackoverflow.com/questions/41072254/warning-cannot-find-parent-tsconfig-json">Warning: Cannot find parent tsconfig.json</a> but the accepted solution there is to use WebStorm 2016.3.2 (the version I am using).</p>