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Gracefully failing on unsupported OS version
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Gracefully failing on unsupported OS version


  • Subject: Gracefully failing on unsupported OS version
  • From: John Brownlow <email@hidden>
  • Date: Mon, 18 Apr 2005 13:43:56 -0400

My app is targeted at 10.4 and better. I know that whatever I do, people are going to download it and try to use it on earlier versions. I don't want to use an installer, just the drag-to-Applications thing. However, as currently configured, on pre-10.4 systems the app just fails to launch without a word of explanation. The syslog shows that the cause of the crash is "failed objc_getClass(NS**tigerOnlyClass**)"

What's the nicest way of catching this problem without using an installer? If the app won't launch in, say, 10.3, how can I tell the user very politely that they need to upgrade if they want to use my app?


-- John Brownlow Deep Fried Films, Inc

http://www.johnbrownlow.com
http://www.pinkheadedbug.com

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