UIKIt requires garbage collection? Huh?

[farhadf]

I'm running test cases with the SenTestKit framework. When I add the UIKit.framework to my test target and run it with debugger, the debugger fails with the following message:

2009-07-14 17:09:17.793 otest[45997:813] The test bundle at Test.octest could not be loaded because its Objective-C runtime information does not match the runtime information required by the test rig.  This is likely because the test rig is being run with Objective-C garbage collection disabled, but the test bundle requires Objective-C garbage collection.  To enable Objective-C garbage collection for the test rig, run it in an environment without the OBJC_DISABLE_GC environment variable.
2009-07-14 17:09:17.817 otest[45999:203] *** NSTask: Task create for path '/Users/ff/dev/iphone/play/testApp/build/Debug-iphonesimulator/Test.octest/Test' failed: 8, "Exec format error".  Terminating temporary process.

When I remove the UIKit framework from the test target, all works well. But the iphone doesn't have GC, so how could the UIKit need it. Furthermore, my actual app works fine - it's just the test cases that fail. I'm confused.

Any thoughts appreciated

[smasher]

Comments on this post suggest that you can "set the OBJ_DISABLE_GC environment variable to YES in the otest executable info window".

beatworm.co.uk Blog Archive Tracing Unit Tests with the XCode 3 Debugger

[farhadf]

It is already set to YES. That's what puzzling - the UIKit shouldn't require GC, and the iphone doesn't support it, which is why it should be disabled in the environment. The error line posted above is hard to read, but the salient part is:

test rig is being run with Objective-C garbage collection disabled, but the test bundle requires Objective-C garbage collection. To enable Objective-C garbage collection for the test rig, run it in an environment without the OBJC_DISABLE_GC environment variable.

Thanks