The problem was from apple side. They believe that the problem is now solved. Thank Apple team. My problem gets resolved. I don't see these type of errors now.

At last my problem got resolved. I have figured out that my app identifier has 2 iCloud containers attached with. I removed the iCloud container which was not in use. Steps to edit iCloud container. Go to your developer account Certificates, IDs & Profiles Identifiers Select your app's identifier iCloud > Edit Container Choose the correct iCloud container This did solve my problem. Hope it works for you too.

I had the similar issue. I have figured out that my app identifier has 2 iCloud containers attached with. I removed the iCloud container which was not in use. Steps to edit iCloud container. Go to your developer account Certificates, IDs & Profiles Identifiers Select your app's identifier iCloud > Edit Container Choose the correct iCloud container This did solve my problem. Hope it works for you too.

I have the same problem. Couldn't solve by any solution. Did you solve the issue?

Tried this - allowed multiple selection=> On tapping already selected cell doesn't deselect it.

OK, I figured out why it's not wokring.I'm not using MainMenu.xib, instead I'm using Main.storyboardWhat I want is Show first Splash Window and then Main WindowPlse find demo source at htt ps://github.com/bchandresh/NSWindowDemoAlso note my email address bchandresh@icloud.com

Sorry Cluade,Forgot to add error desciption.I receive following error:Thread 1: Fatal error: Unexpectedly found nil while implicitly unwrapping an Optional valueon line splashWindow.makeKeyAndOrderFront(splashWindow)

Well, it's throwing an error in applicationDidFinishLaunching, on line splashWindow.makeKeyAndOrderFront(splashWindow)