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Re: Gracefully failing on unsupported OS version
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Re: Gracefully failing on unsupported OS version


  • Subject: Re: Gracefully failing on unsupported OS version
  • From: John Brownlow <email@hidden>
  • Date: Mon, 18 Apr 2005 14:00:46 -0400

nope didn't try that, thanks

what does it do if you use an earlier system?

On Apr 18, 2005, at 1:56 PM, Shawn Erickson wrote:


On Apr 18, 2005, at 10:43 AM, John Brownlow wrote:

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?

Did you try LSMinimumSystemVersion (not sure if Apple fixed it to give better feedback or not)?


<http://developer.apple.com/documentation/MacOSX/Conceptual/ BPRuntimeConfig/Concepts/PListKeys.html#//apple_ref/doc/uid/20001431/ BAJDHACB>

-Shawn


--
John Brownlow
Deep Fried Films, Inc

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

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References: 
 >Gracefully failing on unsupported OS version (From: John Brownlow <email@hidden>)
 >Re: Gracefully failing on unsupported OS version (From: Shawn Erickson <email@hidden>)

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