tsconfig.json

{
  "compilerOptions": {
    "target": "ES5",
    "module": "es2015",
    "lib": ["es5", "es2015", "dom"],
    "jsx": "react",
    "declaration": true,
    "outDir": "./lib",
    "strict": true,
    "moduleResolution": "node",               /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
    "allowSyntheticDefaultImports": true      /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */,
    "esModuleInterop": true                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
  },
  "exclude": ["stories", "lib", "src/index.spec.tsx"],
  "include": [
    "src"
  ]
}