iOS 9、10 CoreData:无法在路径加载优化模型 [英] iOS 9, 10 CoreData: Failed to load optimized model at path
问题描述
我创建了新版本的 CoreData 模型并将现有模型迁移到它.应用程序在 iOS 9+ 上没有任何问题，但对于 iOS 9 和 10，我收到此错误:
<块引用>2017-10-22 19:28:37.081 CafeManager[16654:1918728] CoreData:未能在路径加载优化模型'/Users/dj-glock/Library/Developer/CoreSimulator/Devices/A81AA9C4-7B59-4422-BA0A-0FD0D1A05205/data/Containers/Bundle/Application/DD66571C-4EB6-4A8B-A99B-ManagerFFFappA99B59-4422-BA0A-0FD0D1妈妈/咖啡厅经理v2.omo'
iOS 10:
<块引用>CoreData:注释:无法在路径加载优化模型'/Users/dj-glock/Library/Developer/CoreSimulator/Devices/3708F142-3BD0-4C70-8515-217B7785D285/data/Containers/Bundle/Application/3842402F-BEAE-47CB-8C7CaDCaManagerfeB60.CADCaDCaManagerfeB60妈妈/咖啡厅经理v2.omo'
我查了很多类似的问题，但没有找到适合我的解决方案.我试图在模拟器上重新安装应用程序，重新启动等等.有人可以建议吗?
文件夹包含以下文件:
适用于 iOS 9 的 AppDelegate CoreData 堆栈:
//MARK: - iOS 8+ 的核心数据栈静态 var managedObjectContext: NSManagedObjectContext = {var applicationDocumentsDirectory: URL = {让 urls = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)返回网址[urls.count-1]}()var managedObjectModel: NSManagedObjectModel = {let modelURL = Bundle.main.url(forResource: "CafeManager", withExtension: "momd")！返回 NSManagedObjectModel(contentsOf: modelURL)！}()varpersistentStoreCoordinator: NSPersistentStoreCoordinator = {让 a = managedObjectModel.entities让 coordinator = NSPersistentStoreCoordinator(managedObjectModel: managedObjectModel)让 url = applicationDocumentsDirectory.appendingPathComponent("SingleViewCoreData.sqlite")打印(网址)做{让选项 = [NSMigratePersistentStoresAutomaticallyOption: true, NSInferMappingModelAutomaticallyOption: true]尝试 coordinator.addPersistentStore(ofType: NSSQLiteStoreType, configurationName: nil, at: url, options: options)} 抓住 {NSLog("为 iOS 8+ 初始化 smStore 时出错 - (error.localizedDescription)")}返回协调员}()让协调器=persistentStoreCoordinatorvar managedObjectContext = NSManagedObjectContext(concurrencyType: .mainQueueConcurrencyType)managedObjectContext.persistentStoreCoordinator = 协调器返回 managedObjectContext}()似乎是优化模型版本在 < 上的问题.iOS 11.只需使用未优化的 .mom 模型版本(CafeManager v2.mom).
这是我修复它的方法:
public func managedObjectModel() ->NSManagedObjectModel {let omoURL = modelBundle.url(forResource: name, withExtension: "omo", subdirectory: modelDirectoryName)let momURL = modelBundle.url(forResource: name, withExtension: "mom", subdirectory: modelDirectoryName)守卫 var url = omoURL ??momURL else { fatalError("模型版本 (self) 未找到") }//使用未优化的模型版本 <iOS 11if #available(iOS 11, *) {} else { if let momURL = momURL { url = momURL} }守卫让模型 = NSManagedObjectModel(contentsOf: url) else {fatalError("无法在 (url) 处打开模型") }回报模式}如果你在想，我想要我的速度，为什么我要使用未经优化的东西，阅读这个 回答.
I have created new version of CoreData model and migrated existing one to it. Application works without any issues on iOS 9+, but for iOS 9 and 10 I am getting this error:
2017-10-22 19:28:37.081 CafeManager[16654:1918728] CoreData: Failed to load optimized model at path '/Users/dj-glock/Library/Developer/CoreSimulator/Devices/A81AA9C4-7B59-4422-BA0A-0FD0D1A05205/data/Containers/Bundle/Application/DD66571C-4EB6-4A8B-A99B-B447DD0FFFBA/CafeManager.app/CafeManager.momd/CafeManager v2.omo'
iOS 10:
CoreData: annotation: Failed to load optimized model at path '/Users/dj-glock/Library/Developer/CoreSimulator/Devices/3708F142-3BD0-4C70-8515-217B7785D285/data/Containers/Bundle/Application/3842402F-BEAE-47CB-8C27-EC6CA7D76B03/CafeManager.app/CafeManager.momd/CafeManager v2.omo'
I have checked a lot of similar questions, but did not find solution for me. I have tried to re-install app on simulator, to re-launch and so on. Can anybody advise?
Folder contains the following files:
AppDelegate CoreData stack for iOS 9:
// MARK: - Core Data stack for iOS 8+
static var managedObjectContext: NSManagedObjectContext = {
var applicationDocumentsDirectory: URL = {
let urls = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
return urls[urls.count-1]
}()
var managedObjectModel: NSManagedObjectModel = {
let modelURL = Bundle.main.url(forResource: "CafeManager", withExtension: "momd")!
return NSManagedObjectModel(contentsOf: modelURL)!
}()
var persistentStoreCoordinator: NSPersistentStoreCoordinator = {
let a = managedObjectModel.entities
let coordinator = NSPersistentStoreCoordinator(managedObjectModel: managedObjectModel)
let url = applicationDocumentsDirectory.appendingPathComponent("SingleViewCoreData.sqlite")
print(url)
do
{
let options = [NSMigratePersistentStoresAutomaticallyOption: true, NSInferMappingModelAutomaticallyOption: true]
try coordinator.addPersistentStore(ofType: NSSQLiteStoreType, configurationName: nil, at: url, options: options)
} catch {
NSLog("Error initializing smStore for iOS 8+ - (error.localizedDescription)")
}
return coordinator
}()
let coordinator = persistentStoreCoordinator
var managedObjectContext = NSManagedObjectContext(concurrencyType: .mainQueueConcurrencyType)
managedObjectContext.persistentStoreCoordinator = coordinator
return managedObjectContext
}()
Possible duplicate of this question.
It seems to be the problem with optimized model versions on < iOS 11. Just use unoptimized .mom model version instead (CafeManager v2.mom).
Here's how I fixed it:
public func managedObjectModel() -> NSManagedObjectModel {
let omoURL = modelBundle.url(forResource: name, withExtension: "omo", subdirectory: modelDirectoryName)
let momURL = modelBundle.url(forResource: name, withExtension: "mom", subdirectory: modelDirectoryName)
guard var url = omoURL ?? momURL else { fatalError("model version (self) not found") }
// Use unoptimized model version < iOS 11
if #available(iOS 11, *) {} else { if let momURL = momURL { url = momURL} }
guard let model = NSManagedObjectModel(contentsOf: url) else { fatalError("cannot open model at (url)") }
return model
}
If you're thinking, I want my speed, why would I use something unoptimized, read this answer.
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