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Unable to run Lister (Swift) sample code from Apple website

I tried to download and run the sample Lister app code that was presented at WWDC for Session 406: Swift Integration with Objective-C. (I am running XCode 6.1 on Yosemite and this is the most updated version of the Lister app from Apple's sample code).

https://developer.apple.com/library/ios/samplecode/Lister/Introduction/Intro.html

However, I was unable to launch the application in Xcode, which is best shown in the screenshot.

  • There are no start and stop buttons in the app. They are gray. Never had this before for any other application.

  • Lister app icons are not displayed. Instead, there is a new Settings icon that I have never seen or know what it means.

enter image description here

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The downloaded project has a ReadMe.txt file. You read it because I had the same problem and by reading it my problems were solved.



Hello

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The QuickStart tutorial included with the project sets a key value to change in build settings to enable iCloud.

In the Custom section, double-click the com.example.apple-samplecode file to edit the LISTER_BUNDLE_PREFIX value.



Change this prefix to a globally unique reverse DNS string for your own organization name, such as com.somecompany.lister.

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