'warn_unused_result error

[elad823]

I am getting the following error when i am run the project from xcode:
.
..react-native-redux-starter-kit/node_modules/react-native/Libraries/WebSocket/RCTSRWebSocket.m:494:3: Ignoring return value of function declared with 'warn_unused_result' attribute

when i run from cli react-native run-ios i a getting this:

An error was encountered processing the command (domain=NSPOSIXErrorDomain, code=2):
Failed to install the requested application
An application bundle was not found at the provided path.
Provide a valid path to the desired application bundle.
Print: Entry, ":CFBundleIdentifier", Does Not Exist

...../react-native-redux-starter-kit/node_modules/promise/lib/done.js:10
throw err;
^

Error: Command failed: /usr/libexec/PlistBuddy -c Print:CFBundleIdentifier build/Build/Products/Debug-iphonesimulator/App.app/Info.plist
Print: Entry, ":CFBundleIdentifier", Does Not Exist