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iOS Core Data : can not save entity

N

namanhams

macrumors regular
Original poster
Jun 3, 2009
153
0
Hi,

I have an entity with some fields having 'nil' value. The first time when i save it, everything is fine. Then i change some field values and then save again.
Now it throws an error, saying that the operation could not be completed, due to the 'nil' field.

I'm new to Core Data. Any idea ?
 
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