no need to reset cache

example/package.json

   "version": "0.0.1",
   "private": true,
   "scripts": {
-    "start": "watchman watch-del-all && (adb reverse tcp:8081 tcp:8081 || true) && node node_modules/react-native/local-cli/cli.js start --reset-cache",
+    "start": "watchman watch-del-all && (adb reverse tcp:8081 tcp:8081 || true) && node node_modules/react-native/local-cli/cli.js start",
     "xcode": "open ios/example.xcodeproj",
     "android": "cd android && ./gradlew installDebug"
   },