title: vscode: [ts] Experimental support for decorators is a feature that is subject to change
body: <p>I'm getting "[ts] Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option to remove this warning."</p>
  
  <p>I'm new to Angular and I don't how to solve it.</p>
  
  <p>My tsconfig.json file :</p>
  
  <pre><code>    {  
      "compilerOptions":{  
        "allowSyntheticDefaultImports":true,
        "declaration":false,
        "emitDecoratorMetadata":true,
        "experimentalDecorators":true,
        "lib":[  
           "dom",
           "es2015"
        ],
        "module":"es2015",
        "moduleResolution":"node",
        "sourceMap":true,
        "target":"es5"
      },
      "include":[  
         "src/**/*.ts"
      ],
      "exclude":[  
         "node_modules"
      ],
      "compileOnSave":false,
      "atom":{  
         "rewriteTsconfig":false
       } 
     }
  </code></pre>
  
  <p>Print :</p>
  
  <p><a href="https://i.stack.imgur.com/53qgC.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/53qgC.jpg" alt="enter image description here"></a></p>