尝试在 iOS 10 上迁移核心数据时，我们的 SQL 数据库出现异常。抛出了异常，但似乎迁移仍然成功。我们进行手动迁移，然后 MagicalRecord 处理其余的设置。之前有没有其他人经历过/知道如何解决这个问题？
错误输出:
CoreData: error: (6922) I/O error for database at /var/mobile/Containers/Data/Application/9CA333FB-49CB-4168-B26A-A6F6E6CF94C7/Documents/Messaging.sqlite. SQLite error code:6922, 'disk I/O error'
CoreData: error: -addPersistentStoreWithType:SQLite configuration:(null) URL:file:///var/mobile/Containers/Data/Application/9CA333FB-49CB-4168-B26A-A6F6E6CF94C7/Documents/Messaging.sqlite options:{
NSInferMappingModelAutomaticallyOption = 1;
NSMigratePersistentStoresAutomaticallyOption = 1;
NSSQLitePragmasOption = {
"journal_mode" = WAL;
};
} ... returned error Error Domain=NSCocoaErrorDomain Code=256 "The file couldn't be opened." UserInfo={NSSQLiteErrorDomain=6922, NSUnderlyingException=I/O error for database at /var/mobile/Containers/Data/Application/9CA333FB-49CB-4168-B26A-A6F6E6CF94C7/Documents/Messaging.sqlite. SQLite error code:6922, 'disk I/O error'} with userInfo dictionary {
NSSQLiteErrorDomain = 6922;
NSUnderlyingException = "I/O error for database at /var/mobile/Containers/Data/Application/9CA333FB-49CB-4168-B26A-A6F6E6CF94C7/Documents/Messaging.sqlite. SQLite error code:6922, 'disk I/O error'";
}
CoreData: error: Illegal attempt to save to a file that was never opened. "This NSPersistentStoreCoordinator has no persistent stores (I/O error). It cannot perform a save operation.". Last recorded error = Error Domain=NSCocoaErrorDomain Code=256 "The file "Messaging.sqlite" couldn't be opened." UserInfo={NSFilePath=/var/mobile/Containers/Data/Application/9CA333FB-49CB-4168-B26A-A6F6E6CF94C7/Documents/Messaging.sqlite, NSSQLiteErrorDomain=6922} / {
NSFilePath = "/var/mobile/Containers/Data/Application/9CA333FB-49CB-4168-B26A-A6F6E6CF94C7/Documents/Messaging.sqlite";
NSSQLiteErrorDomain = 6922;
}
最佳答案
我今天升级到 Xcode 11 beta 5 后遇到了这个问题。
运行命令重置我所有的模拟器为我纠正了它:
xcrun simctl erase all
关于iOS 10 核心数据异常代码错误 : (6922)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/42308361/