Tag Archives: iOS

Orbital Mechanics: Part 1

tl;dr. You can find the source code here. As an exercise in learning more of Swift, and gaining an understanding of orbital dynamics, I have started building a Swift framework that can compute orbital parameters from input parameters. The first … Continue reading

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iPhoneSat Communications

Based on the PhoneSat project, which uses Android as the operating system, I decided to pursue an iPhoneSat, which would be a similar project, but based on iOS and using an iPhone rather than Android. Mostly this becomes an excuse … Continue reading

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Bug in Core Data?

After a great deal of searching around and playing with alternatives, I’ve figured out that if I insert new records into the SoundChurch store one record at a time, everything works. If I allow Core Data to attempt to insert … Continue reading

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CoreData error saving data

As I continue to attempt to improve the operation of the Sound Church application, I’ve run into issues with Core Data returning an error when I attempt to save an Item. The error: 2011-07-09 16:57:36.670 Sound-Church[12292:207] Unresolved error Error Domain=NSCocoaErrorDomain … Continue reading

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Sound Church Progress

I’m now getting the podcast data to load into the CoreData store, but still getting a BadAccess Exception that I haven’t tracked down. Still looking to find out where I’m accessing something after it’s deleted. I have an image of … Continue reading

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NSManagedObject

I’ve been discovering the intricacies of managing NSManagedObjects. These are the objects that you as a developer have to use when developing with Core Data. Because of the level of control over the lifecycle of the objects that Core Data … Continue reading

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OCMock for iPhone

Thinking about using OCMock with my Sound-Church project. First off, getting it to build is a challenge, particularly to include the library with the version running on the phone. The solution to that problem is with the linker settings. Notice … Continue reading

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The managed object model version used to open the persistent store is incompatible with the one that was used to create the persistent store.

I’ve been getting this error today when attempting to build my Sound-Church application. Couldn’t figure it out until I found this post that explained it. For iOS, look in ~/Library/Application Support/iPhone Simulator/ where version is the iOS version you are … Continue reading

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