error in cordova prepare (Platform API)

    <platform name="ios">
      <!-- ios restrictions -->
      <preference name="target-device" value="universal" />
    </platform>	

$ cordova prepare --verbose
Executing "before_prepare"  hook for all plugins.
Searching PlatformJson files for differences between project vs. platform installed plugins
No differences found between project and ios platform. Continuing...
Generating config.xml from defaults for platform "ios"
Wrote out iOS Bundle Identifier to "s.one"
Wrote out iOS Bundle Version to "0.0.1"
Error: TypeError: Arguments to path.resolve must be strings
    at Object.posix.resolve (path.js:439:13)
    at new pbxProject (/Users/shazron/Desktop/s/platforms/ios/cordova/node_modules/xcode/lib/pbxProject.js:17:26)
    at handleBuildSettings (/Users/shazron/Desktop/s/platforms/ios/cordova/lib/prepare.js:237:16)
    at updateProject (/Users/shazron/Desktop/s/platforms/ios/cordova/lib/prepare.js:163:12)
    at /Users/shazron/Desktop/s/platforms/ios/cordova/lib/prepare.js:47:16
    at _fulfilled (/Users/shazron/Desktop/s/platforms/ios/cordova/node_modules/q/q.js:787:54)
    at self.promiseDispatch.done (/Users/shazron/Desktop/s/platforms/ios/cordova/node_modules/q/q.js:816:30)
    at Promise.promise.promiseDispatch (/Users/shazron/Desktop/s/platforms/ios/cordova/node_modules/q/q.js:749:13)
    at /Users/shazron/Desktop/s/platforms/ios/cordova/node_modules/q/q.js:509:49
    at flush (/Users/shazron/Desktop/s/platforms/ios/cordova/node_modules/q/q.js:108:17)