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'Class' may not respond to +isKindOfClass
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'Class' may not respond to +isKindOfClass


  • Subject: 'Class' may not respond to +isKindOfClass
  • From: Larry Fransson <email@hidden>
  • Date: Thu, 15 Apr 2004 02:25:07 -0700

Can anyone tell me why the following would generate the subject warning?

[paneClass isKindOfClass:[NSObject class]

In this case, paneClass comes either from NSClassFromString() or a
bundle's principal class. I can't find a "+isKindOfClass:" anywhere.
I can find "-isKindOfClass:", though. Also odd is that if I close the
project after receiving the warning, reopen it and then build, the
warning no longer appears.

Larry Fransson
Seattle, WA
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