Not able to deploy SafariAppLauncher app

Hi,
I am trying to following the following tutorial to setup Appium for running tests on Mobile Safari on actual devices.

https://github.com/appium/appium/blob/master/docs/en/writing-running-appium/mobile-web.md

However when I reached the step to deploy the SafariLauncher app by running this command ./reset.sh --ios --real-safari, I get the following error.

It looks like there is some issue with the certificates from the error description. Has anyone faced this issue before and can shed some lights for me please? Thanks.

---- Resetting / Initializing Appium ----
RESETTING NPM

  • Installing new or updated NPM modules (including devDeps)
    npm WARN package.json [email protected] No README data
    npm WARN package.json [email protected] No repository field.
    npm WARN package.json [email protected] assert is also the name of a node core module.
    npm WARN package.json [email protected] No repository field.
    npm WARN package.json [email protected] path is also the name of a node core module.
    npm WARN package.json [email protected] No repository field.
    npm WARN package.json [email protected] No repository field.
    RESETTING GENERAL
  • Setting git revision data
    Running “setGitRev” task
    Config file exists, updating it
    {“git-sha”:“230dc70f80288612de0c8001803a915958e7b5fb”,“ios”:{“version”:“1.3.7”},“built”:“2015-04-15T21:17:58.303Z”}
    Done, without errors.
    RESETTING IOS
  • Setting iOS config to Appium’s version
    Running “setConfigVer:ios” (setConfigVer) task
    Config file exists, updating it
    {“git-sha”:“230dc70f80288612de0c8001803a915958e7b5fb”,“ios”:{“version”:“1.3.7”},“built”:“2015-04-15T21:17:58.303Z”}
    Done, without errors.
  • Cloning/updating SafariLauncher
  • Building SafariLauncher for real devices
    Running “buildSafariLauncherApp:iphoneos:target.xcconfig” (buildSafariLauncherApp) task
    Using sdk: iphoneos…
    Cleaning build…
    Building app…
    Failed building app, maybe it doesn’t exist?
    Build settings from command line:
    SDKROOT = iphoneos7.1

Build settings from configuration file ‘target.xcconfig’:
BUNDLE_ID = com.bytearc.SafariLauncher
IDENTITY_CODE =
IDENTITY_NAME = iPhone Developer

=== BUILD TARGET SafariLauncher OF PROJECT SafariLauncher WITH THE DEFAULT CONFIGURATION (Release) ===

Check dependencies
Code Sign error: No matching codesigning identity found: No codesigning identities (i.e. certificate and private key pairs) matching “iPhone Developer” were found.
CodeSign error: code signing is required for product type ‘Application’ in SDK ‘iOS 7.1’

** BUILD FAILED **

The following build commands failed:
Check dependencies
(1 failure)