tsconfig.json

{
  "compilerOptions": {
    "outDir": "./build/",
    "noImplicitAny": false,
    "sourceMap": true,
    "module": "es2015",
    "target": "es5",
    "allowJs": false,
    "moduleResolution": "node",
    "esModuleInterop": false
  },
  "include": ["./src/**/*.ts"]
}