tsconfig.json

{
  "compilerOptions": {
    "target": "ES5",
    "module": "commonjs",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "sourceMap": true,
    "noEmitHelpers": true
  },
  "compileOnSave": false,
  "buildOnSave": false,
  "awesomeTypescriptLoaderOptions": {
    "forkChecker": true,
    "useWebpackText": true
  }
}