[React JS] Mac iOS pod install error fix.

Pod install failed in MAC.

Solve the error message during installing iOS pod.

Error messages

Installing iOS pod. Encountered the following message.

First put this commands in console.

$ xcrun -k --sdk iphoneos --show-sdk-path

If it shows:

xcrun: error: SDK "iphoneos" cannot be located
xcrun: error: SDK "iphoneos" cannot be located
xcrun: error: unable to lookup item 'Path' in SDK 'iphoneos'

Then type in the following command.

$ sudo xcode-select --switch /Applications/Xcode.app

Wait for the install procedure.

React js init

$ react-native init Hello

We can see the successful installation messages.