konva/tsconfig.json

{
  "compilerOptions": {
    "outDir": "lib",
    "module": "ES2015",
    "target": "es5",
    "noEmitOnError": true,
    "lib": ["es2015", "dom"]
    // "strict": true
  },
  "include": ["src/index.ts", "src/Core.ts"]
}