Core data fails to open store: “Error validating url for store”



I've been working on an app for quite a while and suddenly started to hit this error when the app tries to open a Core Data store. I hadn't made any changes to my data model or the data access code for over a month, so I don't think it can be anything that I'm doing wrong as far as interacting with Core Data. (Meaning, the URLs are ok, the call pattern is ok, etc...)


Interestingly, these are the log lines immediately before the error:


/SourceCache/GoogleMobileMaps/GoogleMobileMaps-217.2/googlenav/mac/TileStore.mm:209 unable to open /var/mobile/Library/Caches/MapTiles/MapTiles.sqlitedb: (14) unable to open database file
/SourceCache/GoogleMo


Related to : Core data fails to open store: “Error validating url for store”
iPhone In-App Purchase Store Kit error -1003 “Cannot connect to iTunes Store”
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I've been working on adding in-app purchases and was able to create and test in-app purchases using Store Kit (yay!). During testing, I exercised my app in a way which caused the app to crash mid purchase (so I guess the normal cycle of receiving paymentQueue:updatedTransactions and calling finishTransaction was interrupted).


Now I am unable to successfully complete any transactions and instead am getting only transactions with transactionState SKPaymentTransactionStateFailed when paymentQueue:updatedTransactions is called.


The transaction.error.code is -1003 and the transaction.error.localizedDescription is "Cannot connect to iTunes Store"!

Is it fine to say that core data “deserializes” objects when fetching them from an persistent store?
Mobile Programming

Is it fine to say that core data "deserializes" objects when fetching them from an persistent store?


Rails.cache throws “marshal dump” error when changed from memory store to memcached store
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If I set this in my environment


config.action_controller.cache_store = :mem_cache_store

ActionController::Base.cache_store will use a memcached store but Rails.cache will use a memory store instead:


$ ./script/console
>> ActionController::Base.cache_store
=> #<ActiveSupport::Cache::MemCacheStore:0xb6eb4bbc @data=<MemCache: 1 servers, ns: nil, ro: false>>
>> Rails.cache
=> #<ActiveSupport::Cache::MemoryStore:0xb78b5e54 @data={}>

In my app, I use Rails.cache.fetch(key){ object } to cache objects inside

CoreData “Error validating url for store”
Mobile Programming

I'm having a problem in my application, CoreData works as it should in he simulator - but not on the device.


I receive an


2010-09-30 12:45:07.500 CoreDataTutorial_iOS[130:307] Unresolved error Error Domain=NSCocoaErrorDomain Code=513 "The operation couldn’t be completed. (Cocoa error 513.)" UserInfo=0x1412a0 {NSUnderlyingException=Error validating url for store}, {
NSUnderlyingException = "Error validating url for store";

I'm calling for the PersistentStoreCoordinator in this function (which throws the error above):


-(NSPersistentStoreCoordinator*)persistentStoreCoordinator
{
Core data fails to open store: “Error validating url for store”
Mobile Programming

I've been working on an app for quite a while and suddenly started to hit this error when the app tries to open a Core Data store. I hadn't made any changes to my data model or the data access code for over a month, so I don't think it can be anything that I'm doing wrong as far as interacting with Core Data. (Meaning, the URLs are ok, the call pattern is ok, etc...)


Interestingly, these are the log lines immediately before the error:


/SourceCache/GoogleMobileMaps/GoogleMobileMaps-217.2/googlenav/mac/TileStore.mm:209 unable to open /var/mobile/Library/Caches/MapTiles/MapTiles.sqlitedb: (14) unable to open database file
/SourceCache/GoogleMo

Core Data Migration - “Can't add source store” error
Mobile Programming

In my iPhone app I'm using Core Data and I've made changes to my data model that cannot be automatically migrated over (i.e. added new relationships). I added the data model version (Design -> Data Model -> Add Model Version) and applied my new data model changes to the new version 2. I then created a mapping object model and set the Source and Destination models to their correct data models (old and new respectively).


When I run the app and call the persistentStoreCoordinator, my app barfs with the following:


2010-02-27 02:40:30.922 XXXX[73578:20b] Unresolved error Error Domain=NSCocoaErrorDomain Code=134110 UserInfo=0xfc2240 "Operation could not b


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