tsconfig.json

{
    "compilerOptions": {
        "target": "es5" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */,
        "module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
        "lib": [
            "dom",
            "es2015"
        ] /* Specify library files to be included in the compilation. */,
        "sourceMap": true /* Generates corresponding '.map' file. */,
        "noEmitHelpers": true,
        "importHelpers": true /* Import emit helpers from 'tslib'. */,
        "moduleResolution": "node" /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */,
        "baseUrl": "." /* Base directory to resolve non-absolute module names. */,
        "paths": {
            "@/*": ["app/*"]
        } /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */,
        "typeRoots": [
            "types"
        ] /* List of folders to include type definitions from. */,
        "types": [
            "node"
        ] /* Type declaration files to be included in compilation. */,
        "allowSyntheticDefaultImports": true /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */,
        "esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */,
        "experimentalDecorators": true /* Enables experimental support for ES7 decorators. */,
        "emitDecoratorMetadata": true /* Enables experimental support for emitting type metadata for decorators. */,
        "skipLibCheck": true
    },
    "include": ["app", "types", "plugins/TestPlugin.js"],
    "exclude": ["node_modules", "platforms"]
}