【发布时间】：2019-09-01 22:03:39
【问题描述】：
核心数据似乎存在问题。该应用程序在为 iOS 10 移动设备获取持久协调器时崩溃。
崩溃是：-
致命错误：未解决的错误 Error Domain=NSCocoaErrorDomain Code=259“文件无法打开，因为它的格式不正确。” UserInfo={NSUnderlyingException=路径中的文件似乎不是 SQLite 数据库：/var/mobile/Containers/Data/Application/35630A3E-0697-4244-929F-90F35DD1167E/Library/Application Support/Quickride.sqlite, NSSQLiteErrorDomain=26 }
我已尝试找到与核心数据损坏问题相关的解决方案。但没有解决办法。我猜这个问题是持久协调器被破坏了。
@available(iOS 10.0, *)
lazy var persistentContainer: NSPersistentContainer = {
let container = NSPersistentContainer(name: "Quickride")
container.loadPersistentStores(completionHandler: { (storeDescription, error) in
if let error = error {
fatalError("Unresolved error \(error)")
}
})
return container
}()
lazy var persistentStoreCoordinator: NSPersistentStoreCoordinator = {
// The persistent store coordinator for the application. This implementation creates and returns a coordinator, having added the store for the application to it. This property is optional since there are legitimate error conditions that could cause the creation of the store to fail.
// Create the coordinator and store
let coordinator = NSPersistentStoreCoordinator(managedObjectModel: self.managedObjectModel)
let url = self.applicationDocumentsDirectory.appendingPathComponent("SingleViewCoreData.sqlite")
AppDelegate.getAppDelegate().log.debug("Url : \(String(describing: url))")
var failureReason = "There was an error creating or loading the application's saved data."
let mOptions = [NSMigratePersistentStoresAutomaticallyOption: true,
NSInferMappingModelAutomaticallyOption: false]
do {
try coordinator.addPersistentStore(ofType: NSSQLiteStoreType, configurationName: nil, at: url, options: mOptions)
} catch {
// Report any error we got.
var dict = [String: AnyObject]()
dict[NSLocalizedDescriptionKey] = "Failed to initialize the application's saved data" as AnyObject
dict[NSLocalizedFailureReasonErrorKey] = failureReason as AnyObject
let wrappedError = NSError(domain: "QuickRide domain", code: 9999, userInfo: dict)
// Replace this with code to handle the error appropriately.
// abort() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
self.log.debug("Unresolved error \(wrappedError), \(wrappedError.userInfo)")
}
return coordinator
}()
这是崩溃的崩溃报告：-
Crashed: com.apple.main-thread
0 libswiftCore.dylib 0x21b4a4c specialized _assertionFailure(_:_:file:line:flags:) + 27869
1 libswiftCore.dylib 0x204f693 _assertionFailure(_:_:file:line:flags:) + 113116
2 Quickride 0x3e8795 closure #1 in closure #1 in AppDelegate.persistentContainer.getter (AppDelegate.swift:633)
3 Quickride 0x6ff2bd thunk for @escaping @callee_guaranteed (@guaranteed NSPersistentStoreDescription, @guaranteed Error?) -> () (<compiler-generated>)
4 CoreData 0x1ea637c1 -[NSPersistentStoreCoordinator addPersistentStoreWithDescription:completionHandler:] + 406
5 CoreData 0x1eb05e4b -[NSPersistentContainer loadPersistentStoresWithCompletionHandler:] + 398
6 Quickride 0x3e7d13 AppDelegate.persistentContainer.getter (<compiler-generated>)
7 Quickride 0x146b4f specialized static UserCoreDataHelper.getUserObject() (CoreDataHelper.swift:17)
8 Quickride 0x4c2487 AppStartupHandler.performSessionInitializationTask() (<compiler-generated>)
9 Quickride 0x3e6ee5 AppDelegate.handleUserNotification(newUserNotification:) (<compiler-generated>)
10 Quickride 0x3e6a1b AppDelegate.processRemoteNotification(userInfo:) (<compiler-generated>)
11 Quickride 0x3ee493 specialized AppDelegate.application(_:didReceiveRemoteNotification:fetchCompletionHandler:) (AppDelegate.swift:394)
12 Quickride 0x3e6717 @objc AppDelegate.application(_:didReceiveRemoteNotification:fetchCompletionHandler:) (<compiler-generated>)
13 Quickride 0x7fe83d FCM_swizzle_appDidReceiveRemoteNotificationWithHandler (FIRMessagingRemoteNotificationsProxy.m:504)
14 UIKit 0x21ed2927 -[UIApplication _handleNonLaunchSpecificActions:forScene:withTransitionContext:completion:] + 5066
15 UIKit 0x21ebf001 -[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 5168
16 UIKit 0x21ec3c1d -[UIApplication _runWithMainScene:transitionContext:completion:] + 1640
17 UIKit 0x21ed67c5 __84-[UIApplication _handleApplicationActivationWithScene:transitionContext:completion:]_block_invoke.3149 + 40
18 UIKit 0x21ec135b -[UIApplication workspaceDidEndTransaction:] + 142
19 FrontBoardServices 0x1e2fcc13 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 18
20 FrontBoardServices 0x1e2fcacd -[FBSSerialQueue _performNext] + 220
21 FrontBoardServices 0x1e2fcdb7 -[FBSSerialQueue _performNextFromRunLoopSource] + 44
22 CoreFoundation 0x1c9d7fdd __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 12
23 CoreFoundation 0x1c9d7b05 __CFRunLoopDoSources0 + 424
24 CoreFoundation 0x1c9d5f51 __CFRunLoopRun + 1160
25 CoreFoundation 0x1c9291af CFRunLoopRunSpecific + 470
26 CoreFoundation 0x1c928fd1 CFRunLoopRunInMode + 104
27 UIKit 0x21cb6e2d -[UIApplication _run] + 660
28 UIKit 0x21cb1a53 UIApplicationMain + 150
29 Quickride 0x7ef45 main (A ppDelegate.swift:31)
30 libdyld.dylib 0x1c1164eb start + 2
知道如何解决这个问题吗？
【问题讨论】：
-
您是否对模型进行了更改（即使是很小的更改）？
-
@Magnas 我之前对我的模型进行了一些更改
-
您是否已经尝试删除并重新安装该应用程序？如果您进行了模型更改，则可能需要编写迁移代码，如果这是自动迁移无法处理的更改。
标签： ios swift sqlite core-data