tsconfig.json

{
  "compilerOptions": {
    "baseUrl": "src",
    "outDir": "build/dist",
    "module": "esnext",
    "target": "es5",
    "lib": ["es6", "dom"],
    "sourceMap": true,
    "allowJs": true,
    "esModuleInterop": true,
    "jsx": "preserve",
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "rootDir": "src",
    "forceConsistentCasingInFileNames": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noImplicitAny": true,
    "importHelpers": true,
    "strictNullChecks": true,
    "suppressImplicitAnyIndexErrors": true,
    "types": ["react", "react-dom", "styled-components"],
    "skipLibCheck": true,
    "allowSyntheticDefaultImports": true,
    "strict": true,
    "isolatedModules": true,
    "noEmit": true
  },
  "include": ["src", "typings.d.ts"]
}