On 21 Jun '08, at 2:40 PM, John Joyce wrote:

2008-06-21 16:27:05.212 BlogDemo[1180] *** NSRunLoop ignoring exception '[<NSManagedObject 0x3434e0> valueForUndefinedKey:]: this class is not key value coding-compliant for the key topic.' that raised during posting of
delayed perform with target 3c4ac0 and selector 'invokeWithTarget:'

This shows that an exception got raised, which is likely to screw up anything past that point. The message shows that something tried to access the value for key "topic" on a managed object that didn't support it.

[Or is the key name really "topic." with a period? I'm not sure whether the period in the message is part of the key name. Try searching for "topic." in your code to see if you have a spurious period.]

If that doesn't narrow it down enough, set a breakpoint at objc_exception_throw (using the breakpoints window) to find out exactly where the exception gets thrown.

—Jens

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