我也收到了这个错误,但是,这是一个新的应用程序.我没有添加/更改实体或属性.
我删除了商店,我重置了模拟器,但我得到了相同的结果.
这是商店代码..这个问题还有其他原因吗？
- (NSManagedObjectModel *)managedObjectModel {
// NSLog(@"%s",__FUNCTION__);
if (managedObjectModel_ != nil) {
return managedObjectModel_;
}
NSString *modelPath = [[NSBundle mainBundle] pathForResource:@"Lexicon" ofType:@"momd"];
NSURL *modelURL = [NSURL fileURLWithPath:modelPath];
managedObjectModel_ = [[NSManagedObjectModel alloc] initWithContentsOfURL:modelURL];
return managedObjectModel_;
}
/**
Returns the persistent store coordinator for the application.
If the coordinator doesn't already exist,it is created and the application's store added to it.
*/
- (NSPersistentStoreCoordinator *)persistentStoreCoordinator {
if (persistentStoreCoordinator_ != nil) {
return persistentStoreCoordinator_;
}
NSURL *storeURL = [NSURL fileURLWithPath: [[self applicationDocumentsDirectory] stringByAppendingPathComponent: @"dict.sqlite"]];
NSError *error = nil;
persistentStoreCoordinator_ = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:[self managedObjectModel]];
if (![persistentStoreCoordinator_ addPersistentStoreWithType:NSsqliteStoreType configuration:nil URL:storeURL options:nil error:&error]) {
NSLog(@"Unresolved error %@,%@",error,[error userInfo]);
abort();
}
return persistentStoreCoordinator_;
}
这是控制台喷出的：
2011-08-03 11:42:38.936 Lexicon[4468:f203] -[AppDelegate
application:didFinishLaunchingWithOptions:] 2011-08-03 11:42:38.989
Lexicon[4468:f203] -[AppDelegate applicationDocumentsDirectory]
2011-08-03 11:42:39.048 Lexicon[4468:f203] Unresolved error Error
Domain=NSCocoaErrorDomain Code=134100 “The operation couldn’t be
completed. (Cocoa error 134100.)” UserInfo=0x6d3ee60
{Metadata={type = immutable dict,
count = 7,entries => 2 : {contents =
“NSStoreModelVersionIdentifiers”} = {type = immutable,count = 1,values = ( 0 : {length = 0,capacity = 0,bytes = 0x} )} 4 :
{contents =
“NSPersistenceFrameworkVersion”} = {value = +363,type = kcfNumberSInt64Type} 6 : {contents = “NSStoreModelVersionHashes”} =
{type = immutable dict,
entries => 0 : {contents =
“LexiconEntity”} = {length = 32,
capacity = 32,bytes = 0x8698c5295fa5124b78a6b127bba26ff0 …
70eaece0517cd4c6} }7 : {contents = “NSStoreUUID”} =
{contents =
“86B22D58-28A5-4585-8650-07111B34B43A”} 8 : {contents = “NSStoreType”} = {contents = “sqlite”} 9 : {contents = “_NSAutoVacuumLevel”} = {contents = “2”} 10 : {contents = “NSStoreModelVersionHashesVersion”} =
{value = +3,type =
kcfNumberSInt32Type} },reason=The model used to open the store is
incompatible with the one used to create the store},{
Metadata = {
NSPersistenceFrameworkVersion = 363;
NSStoreModelVersionHashes = {
LexiconEntity = <8698c529 5fa5124b 78a6b127 bba26ff0
f3bc678b a4f1e809 70eaece0 517cd4c6>;
};
NSStoreModelVersionHashesVersion = 3;
NSStoreModelVersionIdentifiers = (
<>
);
NSStoreType = sqlite;
NSStoreUUID = “86B22D58-28A5-4585-8650-07111B34B43A”;
“_NSAutoVacuumLevel” = 2;
};
reason = “The model used to open the store is incompatible with
the one used to create the store”; }
解决方法
上面的问题是真的.数据库没有反映模型.
解决方案是让Core Data从模型中创建空数据库,然后让Core Data自行导入数据.
我首先将我的sqlite数据库导出到sql,调用文件db.sql(imaginative！).我只导出数据表和主键表,而不是元数据表.我使用了一个名为sqliteManager的应用程序.您也可以在命令行执行此操作.
除处理持久存储控制器外,所有代码都是库存.
该代码如下：
- (NSPersistentStoreCoordinator *)persistentStoreCoordinator {
if (persistentStoreCoordinator_ != nil) {
return persistentStoreCoordinator_;
}
NSString *storePath = [[self applicationDocumentsDirectory] stringByAppendingPathComponent:@"db.sql"];
// set up the backing store
NSFileManager *fileManager = [NSFileManager defaultManager];
// If the expected store doesn't exist,copy the default store.
if (![fileManager fileExistsAtPath:storePath]) {
NSString *defaultStorePath = [[NSBundle mainBundle] pathForResource:@"dict" ofType:@"sqlite"];
if (defaultStorePath) {
[fileManager copyItemAtPath:defaultStorePath toPath:storePath error:NULL];
}
}
NSURL *storeURL = [NSURL fileURLWithPath:storePath];
NSError *error = nil;
persistentStoreCoordinator_ = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:[self managedObjectModel]];
if (![persistentStoreCoordinator_ addPersistentStoreWithType:NSsqliteStoreType configuration:nil URL:storeURL options:nil error:&error]) {
NSLog(@"Unresolved error %@,[error userInfo]);
abort();
}
return persistentStoreCoordinator_;
}
我希望这有帮助..它似乎对我有用..