tsconfig.json

{
  "compilerOptions": {
    "target": "es2019",
    "experimentalDecorators": true,
    "module": "esNext",
    "moduleResolution": "node",
    "sourceMap": true,
    "strict": true,
    "allowJs": true,
    "jsx": "react-jsx",
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "useDefineForClassFields": true, // required for mobx6 - https://mobx.js.org/installation.html#use-spec-compliant-transpilation-for-class-properties
    "outDir": "ts-out",
    "resolveJsonModule": true,
    "typeRoots": [
      "./lib/ThirdParty/",
      "./node_modules/",
      "./node_modules/@types/",
      "../node_modules/",
      "../node_modules/@types/",
      "../../node_modules/",
      "../../node_modules/@types/",
      "../../../node_modules/",
      "../../../node_modules/@types/"
    ],
    "types": ["terriajs-cesium"]
  },
  "include": [
    "./lib/**/*",
    "./test/**/*",
    "./buildprocess/generateDocs.ts",
    "./buildprocess/**/*"
  ]
}