tsconfig.base.json

{
  "compilerOptions": {
    "rootDir": ".",
    "paths": {},
    "strictNullChecks": true,
    "moduleResolution": "node",
    "experimentalDecorators": true,
    "noUnusedParameters": true,
    "noUnusedLocals": true,
    "noImplicitAny": true,
    "esModuleInterop": true,
    "allowJs": true,
    "target": "es6",
    "jsx": "preserve",
    "lib": [
      "dom",
      "es2017"
    ],
    "skipLibCheck": true,
    "noEmit": true,
    "module": "esnext",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "typeRoots": [
      "./node_modules/@types", "./typings"
    ]
  },
  "exclude": ["node_modules"],
  "include": [
    "**/*.ts", 
    "**/*.tsx", 
    "**/*.js", 
    "**/*.jsx"
  ],
}