tsconfig.json

{
  "compilerOptions": {
    "allowJs": false,
    "allowSyntheticDefaultImports": true,
    "declaration": true,
    "esModuleInterop": true,
    "experimentalDecorators": true,
    "forceConsistentCasingInFileNames": true,
    "jsx": "react",
    "lib": ["es5", "es2015", "es2016", "es2017", "es2018", "esnext", "dom"],
    "module": "es2015",
    "moduleResolution": "node",
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noUnusedLocals": true,
    "outDir": "./dist",
    "rootDir": "src",
    "sourceMap": true,
    "strictNullChecks": true,
    "suppressImplicitAnyIndexErrors": true,
    "target": "es5",
    "typeRoots": ["node_modules/@types", "./typings.d.ts"]
  }
}