Changing the development language in Xcode

Question

I need to set Spanish as development language for an iOS app. I\'m already using Xcode 6, and I changed the Localization native development region entry in app\

Answer 1

For Xcode 9 through 11:

Close Xcode.

1. Open your project.pbxproj in a text editor
2. Look for developmentRegion and set its value (es for spanish, fr for french,...)
3. Look for knownRegions and add the new language to the list

Open Xcode: Your project info should now show the language name with Development Language next to it.