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Re: Read only NSMutableArray after unarchiving
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Re: Read only NSMutableArray after unarchiving


  • Subject: Re: Read only NSMutableArray after unarchiving
  • From: Hasan Diwan <email@hidden>
  • Date: Thu, 12 Dec 2002 14:26:46 -0500

David:
NSMutableArray *data = [[NSUnarchiver unarchiveObjectWitData:data]
mutableCopy];
That should solve your problem.
On Thursday, December 12, 2002, at 07:26 AM, David Lee wrote:
>
> I have been having some trouble with encoding and decoding using
> NSArchiver/NSUnarchiver under Mac OS X 10.1.5.
> Basically I have been encoding NSMutableArray objects (which
> themselves are filled with objects that follow the NSCoding protocol).
> My application decodes all the data correctly however I get this
> message when running from within project builder whenever I try to
> edit one of the arrays that has been deserialized from disk. It seems
> it is now a read only array. What do I have to do to stop this
> behaviour?
>
> RRV Studio[691] *** -[NSCFArray removeObjectAtIndex:]: mutating method
> sent to immutable object
Hasan Diwan
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