react-native trouble-shooting

useful link

android - unable to download js bundle
  http://stackoverflow.com/questions/32572399/react-native-android-failed-to-load-js-bundle
  "create an assets folder under android/app/src/main"

watchman issue
  watchman shutdown-server
  brew update && brew upgrade
  brew uninstall --force  watchman
  brew install watchman

iOS - unable to download js bundle
  https://github.com/facebook/react-native/issues/240#issuecomment-86977126
  Open iOS/AppDelegate.m
  Comment out jsCodeLocation = [NSURL URLWithString:@"http://localhost:8081/index.ios.bundle"];
  Uncomment jsCodeLocation = [[NSBundle mainBundle] URLForResource:@"main" withExtension:@"jsbundle"];
  curl http://localhost:8081/index.ios.bundle -o main.jsbundle - if this fails (as it did on my machine) add the --ipv4 flag to the end of it.
  Add Files to "Project Name Here" - choose the main.jsbundle file that you generated.