wishthis/node_modules/less/tsconfig.json

{
  "compilerOptions": {
    "outDir": "./lib",
    "rootDir": ".",
    "allowJs": true,
    "sourceMap": true,
    "inlineSources": true,
    "esModuleInterop": true,
    "importHelpers": true,
    "noImplicitAny": true,
    "target": "ES5"
  },
  "ts-node": {
    "compilerOptions": {
      "rootDir": "."
    }
  },
  "include": ["**/*"],
  "exclude": ["node_modules", "lib/**/*"]
}