'FileManager'类型的值没有成员'urlsForDirectory' - AppDelegate Swift 3错误

Question

由于我最近更新到XCode 8 Beta 5，我一直试图在我的appDelegate核心数据堆栈中解决这个错误。

在这行代码，我得到了以下错误：

// MARK: - Core Data stack 

lazy var applicationDocumentsDirectory: URL = { 
    // The directory the application uses to store the Core Data store file. This code uses a directory named "fitness.paceapp.Pace" in the application's documents Application Support directory. 
    let urls = FileManager.default.urlsForDirectory(.documentDirectory, inDomains: .userDomainMask) 
    return urls[urls.count-1] 
}() 

lazy var managedObjectModel: NSManagedObjectModel = { 
    // The managed object model for the application. This property is not optional. It is a fatal error for the application not to be able to find and load its model. 
    let modelURL = Bundle.main.urlForResource("Dominos", withExtension: "momd")! 
    return NSManagedObjectModel(contentsOf: modelURL)! 
}() 

什么可能会错过我的任何想法。我很迷茫，在那里没有太多答案。提前致谢。

Answer 1

在这里你去，

lazy var applicationDocumentsDirectory: URL = { 
     // The directory the application uses to store the Core Data store file. This code uses a directory named "fitness.paceapp.Pace" in the application's documents Application Support directory. 
     let urls = FileManager.default.urls(for: FileManager.SearchPathDirectory.documentDirectory, in: FileManager.SearchPathDomainMask.userDomainMask) 
     return urls[urls.count-1] 
    }() 

    lazy var managedObjectModel: NSManagedObjectModel = { 
     // The managed object model for the application. This property is not optional. It is a fatal error for the application not to be able to find and load its model. 
     let modelURL = Bundle.main.url(forResource: "Dominos", withExtension: "momd")! 
     return NSManagedObjectModel(contentsOf: modelURL)! 
    }() 

Answer 2

是：

let urls = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask) 
return urls.last! 

或者

return try! FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false)