Building iOS apps for Simulator with Xcode 5 with command line

Things a little changed since Xcode 4

If you want to build your project for simulator 

and want to do it with the latest and the greatest version of Xcode - version 5.x

and want to do it with command line utility xcodebuild, 

because you need this for Continuous Integration or someth, 

then: 

1. In your Build Scheme for Simulator in project's "Build Settings" in section "Code Signing" set:

• "Don't Code Sign" for "Code Signing Identity"
• "None" for "Provisioning Profile"

2. In command line use iphonesimulator7.0 as desired SDK

(even if you have downloaded SDK 6.1, it won't help. not without other voodoo dark magic)

/usr/bin/xcodebuild -verbose \

  -project MyCoolProject/MyCoolProject.xcodeproj \

  -scheme MyCoolProjectSimulator \

  -configuration Debug \

  -arch i386 \

  -sdk iphonesimulator7.0 \

  TARGETED_DEVICE_FAMILY=2 \

  clean build

where TARGETED_DEVICE_FAMILY is iPhone (1) or iPad (2)