IPhone Dev Error: Program received signal: “EXC_BAD_ACCESS”. or “Failed to call designated initaializer on NSManagedObject class”

Symptoms: cryptic error message with a massive stack trace (65k+ stack frames)
This could be a memory leak, however, the cause in my case was i had named a property of a NSManagedObject object “description” in my Core Data data model. While “description” is a not technically a reserved keyword it is a method in NSObject which when used with Core Data causes problems.
Solution; rename the property to something else like desc.

see http://stackoverflow.com/questions/2222155/core-data-crashes-with-exc-bad-access-on-one-of-my-entities for more

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