title: Multiple tsconfig on a Visual Studio 2015 Project [typescript 1.8]
body: <p>I have a MVC 5 project where I use typescript.
  Now I have to implements new features I it open other typescript implementation way.
  I'm trying to use multiple <code>tsconfig.json</code> file new feature of typescript 1.8, I have two folders: <code>typescriptE21</code> and <code>typescript</code>, and a <code>tsconfig.json</code> file on each folder.</p>
  
  <p>The first:</p>
  
  <pre><code>{
      "compilerOptions": {
          "removeComments": false,
          "sourceMap": false,
          "target": "es5",
          "noImplicitAny": false,
          "module": "amd",
          "declaration": false,
          "noEmitOnError": true,
          "emitDecoratorMetadata": true,
          "experimentalDecorators": true,
          "inlineSourceMap": true,
          "inlineSources": true
      },
      "compileOnSave": true,
      "exclude": [
          "node_modules",
          "typescript"
      ]
  }
  </code></pre>
  
  <p>and the second:</p>
  
  <pre><code>{
      "compilerOptions": {
          "removeComments": false,
          "sourceMap": false,
          "target": "es5",
          "noImplicitAny": false,
          "module": "system",
          "declaration": false,
          "noEmitOnError": true,
          "emitDecoratorMetadata": true,
          "experimentalDecorators": true,
          "inlineSourceMap": true,
          "inlineSources": true
      },
      "compileOnSave": true,
      "exclude": [
          "node_modules",
          "typescript21",
          "scripts"
      ]
  }
  </code></pre>
  
  <p>When I open the project properties on Typescript section says "One or more tsconfig.json files detected. Project properties are disabled." that's correct but when I run the application I get this error: </p>
  
  <p><code>Build: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option to remove this warning</code></p>
  
  <p>On this file:</p>
  
  <pre><code>import {Component} from "ngts/ngts";
  
  @Component({
      template: `&lt;div md-scroll-y flex class="md-padding" id="contenido"&gt;Contenido&lt;/div&gt;`
  })
  export class EmAplicacion {
  
  }
  </code></pre>
  
  <p>In both <code>tsconfig.json</code> files I have activated the decorators but seems that typescript doesn't get the compiler options from there ...</p>
  
  <p>In addition, when I don't use decorators, It compiles but I can see the result files and they are emited using AMD module system when I have put "system" in the second config file ...</p>
  
  <p>What's the problem? </p>