Core Data容易出现的错误

1、2015-08-24 15:52:17.674 Tasks[3189:144763] CoreData: error: -addPersistentStoreWithType:SQLite configuration:(null) URL:file:///Users/zhumin/Library/Developer/CoreSimulator/Devices/09E156EA-B44B-4CCA-9E32-9286D332DDF0/data/Containers/Data/Application/4E9E83E8-DA35-4AE8-81FD-EBD9C09D17D6/Documents/Tasks.sqlite options:(null) ... returned error Error Domain=NSCocoaErrorDomain Code=134100 "The operation couldn’t be completed. (Cocoa error 134100.)" UserInfo=0x7fc84366ed60 {metadata={
    NSPersistenceFrameworkVersion = 519;
    NSStoreModelVersionHashes =     {
        Event = <5431c046 d30e7f32 c2cc8099 58add1e7 579ad104 a3aa8fc4 846e97d7 af01cc79>;
    };
    NSStoreModelVersionHashesVersion = 3;
    NSStoreModelVersionIdentifiers =     (
        ""
    );
    NSStoreType = SQLite;
    NSStoreUUID = "4EE0C579-E3F8-48CC-ACFF-26CBCB386C37";
    "_NSAutoVacuumLevel" = 2;
}, reason=The model used to open the store is incompatible with the one used to create the store} with userInfo dictionary {
    metadata =     {
        NSPersistenceFrameworkVersion = 519;
        NSStoreModelVersionHashes =         {
            Event = <5431c046 d30e7f32 c2cc8099 58add1e7 579ad104 a3aa8fc4 846e97d7 af01cc79>;
        };
        NSStoreModelVersionHashesVersion = 3;
        NSStoreModelVersionIdentifiers =         (
            ""
        );
        NSStoreType = SQLite;
        NSStoreUUID = "4EE0C579-E3F8-48CC-ACFF-26CBCB386C37";
        "_NSAutoVacuumLevel" = 2;
    };
    reason = "The model used to open the store is incompatible with the one used to create the store";

}

1、ps:上面的错误方法是相应的数据库没有创建成功。这个要注意我们在写属性指的设置的时候要对应。

2015-08-24 15:52:17.675 Tasks[3189:144763] Unresolved error Error Domain=YOUR_ERROR_DOMAIN Code=9999 "Failed to initialize the application's saved data" UserInfo=0x7fc843712020 {NSLocalizedFailureReason=There was an error creating or loading the application's saved data., NSLocalizedDescription=Failed to initialize the application's saved data, NSUnderlyingError=0x7fc84366ede0 "The operation couldn’t be completed. (Cocoa error 134100.)"}, {
    NSLocalizedDescription = "Failed to initialize the application's saved data";
    NSLocalizedFailureReason = "There was an error creating or loading the application's saved data.";
    NSUnderlyingError = "Error Domain=NSCocoaErrorDomain Code=134100 \"The operation couldn\U2019t be completed. (Cocoa error 134100.)\" UserInfo=0x7fc84366ed60 {metadata={\n    NSPersistenceFrameworkVersion = 519;\n    NSStoreModelVersionHashes =     {\n        Event = <5431c046 d30e7f32 c2cc8099 58add1e7 579ad104 a3aa8fc4 846e97d7 af01cc79>;\n    };\n    NSStoreModelVersionHashesVersion = 3;\n    NSStoreModelVersionIdentifiers =     (\n        \"\"\n    );\n    NSStoreType = SQLite;\n    NSStoreUUID = \"4EE0C579-E3F8-48CC-ACFF-26CBCB386C37\";\n    \"_NSAutoVacuumLevel\" = 2;\n}, reason=The model used to open the store is incompatible with the one used to create the store}";
}
(lldb)

2、这个出现错误的程度最高的就是：“用于打开存储的模型和用于创建存储的模型不兼容”
ps：需要使用Core Data迁移将数据从一个数据模型迁移到另外一个模型。（这个还没有学到）
现在解决方式：听过删除模拟器生成的app，然后再一次运行，
强制Core Data创建兼容当前数据模型的新的数据存储。