iPhone Core Data 轻量级迁移 Cocoa 错误 134130:找不到源商店的模型 [英] iPhone Core Data Lightweight Migration Cocoa error 134130: Can't find model for source store
问题描述
各位，
轻量级迁移对我来说在这条线上 100% 的时间都失败了:
Lightweight migration is failing for me 100% of the time on this line:
[persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeUrl options:options error:&error]
错误:
Error: Error Domain=NSCocoaErrorDomain Code=134130 UserInfo=0x4fbff20 "Operation could not be completed. (Cocoa error 134130.)"
"Can't find model for source store";
这是我的托管对象上下文、模型和持久存储:
Here is my managed object context, model, and persistent store:
- (NSManagedObjectContext *) managedObjectContext {
if (managedObjectContext != nil) {
return managedObjectContext;
}
NSPersistentStoreCoordinator *coordinator = [self persistentStoreCoordinator];
if (coordinator != nil) {
managedObjectContext = [[NSManagedObjectContext alloc] init];
[managedObjectContext setPersistentStoreCoordinator: coordinator];
}
return managedObjectContext;
}
- (NSManagedObjectModel *)managedObjectModel {
if (managedObjectModel != nil) {
return managedObjectModel;
}
managedObjectModel = [[NSManagedObjectModel mergedModelFromBundles:nil] retain];
return managedObjectModel;
}
- (NSPersistentStoreCoordinator *)persistentStoreCoordinator {
if (persistentStoreCoordinator != nil) {
return persistentStoreCoordinator;
}
NSURL *storeUrl = [NSURL fileURLWithPath: [[self applicationDocumentsDirectory] stringByAppendingPathComponent: @"Locations.sqlite"]];
NSError *error;
persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel: [self managedObjectModel]];
// Allow inferred migration from the original version of the application.
NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithBool:YES], NSMigratePersistentStoresAutomaticallyOption,
[NSNumber numberWithBool:YES], NSInferMappingModelAutomaticallyOption, nil];
if (![persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeUrl options:options error:&error]) {
NSLog(@"Error: %@",error);
NSLog(@"Unresolved error %@, %@", error, [error userInfo]);
abort();
}
return persistentStoreCoordinator;
}
我的项目中有两个版本的模型:版本 4 和版本 5.如果我将版本 4 设置为默认值，它可以正常工作.如果我选择设计 -> 数据模型 -> 添加模型版本"(如 this 所述post)，进行更改，设计 -> 数据模型 -> 设置当前版本，构建并运行，它将因上述无法找到源存储模型"错误而失败.将模型设置回版本4，没问题，添加PersistentStoreWithType.或者，如果我添加模型版本并且不做任何更改，只需从版本 4 转到版本 5 而不添加任何新字段，没有问题.如果我再尝试从 5 到 6，就会出现上述错误.
I have two versions of my model in my project: a version 4 and a version 5. If I set my version 4 as default, it works fine. If I select "Design -> Data Model -> Add Model Version" (as described by this post), make a change, Design -> Data Model -> Set Current Version, build and run, it will fail with the aforementioned "Can't find model for source store" error. Set model back to version 4, no problems, addPersistentStoreWithType. Alternatively, if I add model version and make no changes, simply go from version 4 to 5 without adding any new fields, no problems. If I then try to go from 5 to 6, the aforementioned error.
此代码在模拟器和手机上均失败.我阅读了一些要求删除和重新安装应用程序的处方，这对模拟器和电话都有效，但我担心当我向真实用户发布此应用程序时，它会破坏我的安装基础，因为他们将无法删除和重新安装- App Store 会自动升级它们.
This code is failing on both Simulator and Phone. I read several prescriptions calling for deleting and reinstalling the app, which does work for both Simulator and Phone, but I am afraid that when I release this to real users it will break my installed base since they won't be able to delete and reinstall - App Store will auto-upgrade them.
此代码在过去的版本中运行，我没有任何更改 - 因此我能够将其一直升级到第 4 版.我最近升级到适用于 iOS4 的 XCode 3.2.3 构建，这可能与此有关.
This code worked in releases past with no changes on my part - hence my ability to make it all the way up to version 4. I recently upgraded to XCode 3.2.3 building for iOS4, which may have something to do with this.
现在有没有人像我一样突然遇到这个问题?有没有人设法通过它?谢谢.
Is anyone else having this issue all of a sudden now like I am? Has anyone managed to work past it? Thanks.
PS - 对于偶然发现此页面的 Google 员工，以下是您可能考虑阅读的所有相关页面，如下所示.不幸的是，这些都没有解决我的问题.
PS - For Googlers who stumble on this page, here are all the relevant pages you might consider reading, below. Unfortunately none of these solved my issue.
- 实现自动轻量级迁移"；用于核心数据 (iPhone)
- http://iphonedevelopment.blogspot.com/2009/09/core-data-migration-problems.html
- https://stackoverflow.com/questions/2925918/iphone-core-data-lightweight-migration-error-reason-cant-find-model-for-sour
- iPhone 核心数据自动轻量级迁移"
- http://www.iphonedevsdk.com/forum/iphone-sdk-development/38545-coredata-migration-issues.html
更新
虽然这不是真正的修复，但它确实避免了客户端崩溃的情况:只需删除数据库文件:
While this is not a real fix, it does avoid the scenario of a crashing client: simply delete the database file:
if (![persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeUrl options:options error:&error]) {
// Delete file
if ([[NSFileManager defaultManager] fileExistsAtPath:storeUrl.path]) {
if (![[NSFileManager defaultManager] removeItemAtPath:storeUrl.path error:&error]) {
NSLog(@"Unresolved error %@, %@", error, [error userInfo]);
abort();
}
}
if (![persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeUrl options:options error:&error])
{
// Handle the error.
NSLog(@"Error: %@",error);
NSLog(@"Unresolved error %@, %@", error, [error userInfo]);
abort();
}
}
更新 2
这是我检查 VersionInfo.plist 时发生的情况:
Here is what happens when I inspect VersionInfo.plist:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>NSManagedObjectModel_CurrentVersionName</key>
<string>Profile 5</string>
<key>NSManagedObjectModel_VersionHashes</key>
<dict>
<key>Profile</key>
<dict>
<key>Profile</key>
<data>
ZIICGgMBreuldkPXgXUhJwKamgwJzESM5FRTOUskomw=
</data>
</dict>
<key>Profile 2</key>
<dict>
<key>Profile</key>
<data>
tEB7HrETWOSUuoeDonJKLXzsxixv8ALHOoASQDUIZMA=
</data>
</dict>
<key>Profile 3</key>
<dict>
<key>Profile</key>
<data>
qyXOJyKkfQ8hdt9gcdFs7SxKmZ1JYrsXvKbtFQTTna8=
</data>
</dict>
<key>Profile 4</key>
<dict>
<key>Profile</key>
<data>
lyWDJJ0kGcs/pUOModd3Q1ymDvdRiNXui4NCpLxDFSw=
</data>
</dict>
<key>Profile 5</key>
<dict>
<key>Profile</key>
<data>
V4PyRK1ezj3xK1QFRCTVzGOqyJhEb7FRMzglrTsP0cI=
</data>
</dict>
</dict>
</dict>
</plist>
这是我编写的用于检查模型的代码(请注意，我必须出去添加一个 base64 编码器，因为这是 VersionInfo.plist 文件中的内容)
Here is the code that I wrote to inspect my model (note I had to go out and add a base64 encoder, since that is what is in the VersionInfo.plist file)
if (![persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeUrl options:options error:&error]) {
NSDictionary *storeMeta = [NSPersistentStoreCoordinator metadataForPersistentStoreOfType:nil URL:storeUrl error:&error];
NSLog(@"%@",storeMeta);
id someObj = [[storeMeta objectForKey:@"NSStoreModelVersionHashes"] objectForKey:@"Profile"];
NSLog(@"%@",someObj);
NSLog(@"%@",[NSString base64StringFromData:someObj length:[someObj length]]);
这里是调试输出:
{
NSPersistenceFrameworkVersion = 310;
NSStoreModelVersionHashes = {
Profile = <97258324 9d2419cb 3fa5438c a1d77743 5ca60ef7 5188d5ee 8b8342a4 bc43152c>;
SerializedMessage = <4530863c d943479a edfb4dfb 5059c28d d6137dc4 d1153d36 ed52be49 11074f13>;
};
NSStoreModelVersionHashesVersion = 3;
NSStoreModelVersionIdentifiers = (
);
NSStoreType = SQLite;
NSStoreUUID = "823FD306-696F-4A0F-8311-2792825DC66E";
"_NSAutoVacuumLevel" = 2;
}
<97258324 9d2419cb 3fa5438c a1d77743 5ca60ef7 5188d5ee 8b8342a4 bc43152c>
lyWDJJ0kGcs/pUOModd3Q1ymDvdRiNXui4NCpLxDFSw=
如您所见，以ly"开头的最后一行与 VersionInfo.plist 中的配置文件 4 匹配...因此我看不出它应该失败的原因.还有其他想法吗?
As you can see, that last line that starts with 'ly' matches Profile 4 in VersionInfo.plist...hence I see no reason why it should be failing. Any other ideas?
推荐答案
大家，
为了记录，我完全停止使用核心数据.我的代码很复杂，而且根据上述问题，不可靠.我现在直接使用 SQLLite 并且更快乐.我不建议在任何情况下使用 Core Data.
For the record, I ceased use of core data completely. My code was complicated and, per the issues above, unreliable. I use SQLLite directly now and am WAY happier. I cannot recommend using Core Data in any scenario.
这篇关于iPhone Core Data 轻量级迁移 Cocoa 错误 134130:找不到源商店的模型的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
