message: cli: revert back to target es5
diff: {
  "compilerOptions": {
  - "target": "es2015",
  - "module": "es2015",
  - "moduleResolution": "node",
  + "target": "es5",
  "jsx": "react",
  "reactNamespace": "app",
  "lib": ["dom", "es2015", "es5"],
  