Me again.

I fixed it. I forgot to specify a Principle class for some of my plugins. This 
was no problem before, not with gcc (xCode 3) and not with clang in xCode 4. 

Thanks
Georg

On 03.02.2012, at 00:24, Greg Parker wrote:

> On Feb 2, 2012, at 2:51 PM, Georg Seifert <georg.seif...@gmx.de> wrote:
>> I try to convert my app to use xCode 4.2 and ARC. My app uses several custom 
>> frameworks and plugins. I used the migration tool to enable ARC for all of 
>> them.
>> 
>> As I still want to support Snow Leopard, I set the SDKROOT to 10.7 and the 
>> Deployment Target to 10.6. But if I do that, on the startup of the app, I 
>> get this in the console: 
>> 
>> objc[9438]: Class __ARCLite__ is implemented in both [..]framework1 and 
>> [..]framework2. One of the two will be used. Which one is undefined. // 
>> removed the paths to frameworks...
>> objc[9438]: Class __ARCLite__ is implemented in both [..]framework1 and 
>> [..]framework3. One of the two will be used. Which one is undefined.
>> objc[9438]: Class __ARCLite__ is implemented in both [..]framework1 and 
>> [..]framework4. One of the two will be used. Which one is undefined.
>> 
>> In the beginning I had only a few but now after converting all of my bundles 
>> (around 20) I have 10 lines of those. The ARCLite stuff seems to be the 
>> implementation to get ARC to work on Snow Leopard.
> 
> That's right. The warning is annoying but otherwise harmless. The machinery 
> that makes ARC code work on older deployment targets was designed for apps, 
> and doesn't work well in frameworks. A future developer tools release should 
> fix this.
> 
> 
>> That should not be a problem. BUT I also get this:
>> 
>> 2012-02-02 23:35:54.057 Glyphs[9438:1803] *** NSInvocation: warning: object 
>> 0x1006db648 of class '__ARCLite__' does not implement 
>> methodSignatureForSelector: -- trouble ahead
>> 2012-02-02 23:35:54.057 Glyphs[9438:1803] *** NSInvocation: warning: object 
>> 0x1006db648 of class '__ARCLite__' does not implement 
>> doesNotRecognizeSelector: -- abort
>> 
>> And this just crashes the app. Does anyone has a clue what is going on here? 
>> google is not very helpful.
> 
> That's bad. What is the backtrace?
> 
> 
> -- 
> Greg Parker     gpar...@apple.com     Runtime Wrangler
> 
> 


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