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03 Oct 2012, 15:51
rvamerongen (4 posts)

Hi, happy to see an updated version. Specialy about NSIncrementalStore wil be very welcome. It is in there, right? I hope so.

Anyway, my question. For people who owes the first edition and who want to buy the second edition, will there be a price reduction?

03 Oct 2012, 18:10
Gordon Apple (29 posts)

Ditto for first edition owners. If not, I’ll probably spring for the $21 eBook upgrade anyway.

08 Oct 2012, 00:40
Marcus S. Zarra (274 posts)

The publisher will need to answer the question about upgrade pricing. I am honestly not sure how that works.

As for NSIncrementalStore, I am on the fence about adding it. I will definitely take your request into consideration for it.

08 Oct 2012, 19:49
Colleen Toporek (2 posts)

This is Colleen Toporek, Marcus’s editor here at the Prags. I did check, but unfortunately there’s no discount for a new edition.

09 Oct 2012, 14:52
vincent youmans (1 post)

I was just checking out the sample code. Nothing is compiling. I think I know what the problem is, and should be a fairly simple fix. I am running xCode 4.5.1. and I can not open any of the .xcdatamodeld files. I think the fix is correcting those files. Perhaps you could ask Marcus to check his code out and make the fixes. I would get a Beta copy of the book if I could get the code to work.

13 Oct 2012, 05:05
Marcus S. Zarra (274 posts)

I am also using 4.5.1 and all of the projects are compiling for me. I will check with what is on the Prags servers and see if there is a difference.

17 Oct 2012, 14:48
Zoltan Deak (1 post)

I also cannot open the .xcdatamodeld files. I see that you have a mogenerator script on the directory so I ran it . It aborted with the following as output:

Baseline > . 2012-10-17 10:34:18.980 momc[10487:f07] * Terminating app due to uncaught exception ‘NSInvalidArgumentException’, reason: ‘* -[NSKeyedUnarchiver initForReadingWithData:]: incomprehensible archive (0x62, 0x70, 0x6c, 0x69, 0x73, 0x74, 0x30, 0x30)’ *** First throw call stack: ( 0 CoreFoundation 0x00007fff8f22f0a6 __exceptionPreprocess + 198 1 libobjc.A.dylib 0x00007fff8cabc3f0 objc_exception_throw + 43 2 CoreFoundation 0x00007fff8f22ee7c +[NSException raise:format:] + 204 3 Foundation 0x00007fff878a4b99 -[NSKeyedUnarchiver initForReadingWithData:] + 3097 4 Foundation 0x00007fff8787cc20 +[NSKeyedUnarchiver unarchiveObjectWithFile:] + 124 5 momc 0x000000010cb73a49 momc + 6729 6 momc 0x000000010cb73d9f momc + 7583 7 momc 0x000000010cb74c54 momc + 11348 8 momc 0x000000010cb731b8 momc + 4536 ) libc++abi.dylib: terminate called throwing an exception Assertion failed: (model), function -[MOGeneratorApp setModel:], file /Users/wolf/code/github/mogenerator/mogenerator.m, line 589. Abort trap: 6

Otherwise, I think your book is great so far. Thanks.

06 Nov 2012, 19:28
Marcus S. Zarra (274 posts)


The code that was uploaded had a corrupted file. the code will be updated with the next beta push. That should resolve this issue.

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