Core/tsconfig.json

{
  "ts-node": {
    "compilerOptions": {
      "module": "ESNext",
	    "types": ["node"],
    }
  },

  "compilerOptions": {
    "outDir": "./lib/",
	  "incremental": true,
	  "sourceMap": true,
    "noImplicitAny": true,
	  "noImplicitThis": true,
	  "esModuleInterop": true,
	  "allowSyntheticDefaultImports": true,
	  "resolveJsonModule": true,
	  "experimentalDecorators": true,
	  "emitDecoratorMetadata": true,
	  "declaration": true,
    "declarationMap": true,
    "module": "ES6",
	  "target": "ES6",
    "moduleResolution": "Bundler",
    "lib": [
      "ESNext",
      "DOM"
    ]
  }
}