Instance Method


An NSFileManager object sends this message to its handler for each error it encounters when copying, moving, removing, or linking files or directories.


func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool



The file manager that sent this message.


A dictionary that contains two or three pieces of information (all NSString objects) related to the error:




The path related to the error (usually the source path)


A description of the error


The destination path (not all errors)

Return Value

true if the operation (which is often continuous within a loop) should proceed, otherwise false.


An NSFileManager object, manager, sends this message for each error it encounters when copying, moving, removing, or linking files or directories. The return value is passed back to the invoker of copyPath:toPath:handler:, movePath:toPath:handler:, removeFileAtPath:handler:, or linkPath:toPath:handler:. If an error occurs and your handler has not implemented this method, the invoking method automatically returns false.

See Also

Deprecated Methods

func changeFileAttributes([AnyHashable : Any], atPath: String) -> Bool

Changes the attributes of a given file or directory.

func fileAttributes(atPath: String, traverseLink: Bool) -> [AnyHashable : Any]?

Returns a dictionary that describes the POSIX attributes of the file specified at a given.

func fileSystemAttributes(atPath: String) -> [AnyHashable : Any]?

Returns a dictionary that describes the attributes of the mounted file system on which a given path resides.

func directoryContents(atPath: String) -> [Any]?

Returns the directories and files (including symbolic links) contained in a given directory.

func createDirectory(atPath: String, attributes: [AnyHashable : Any]) -> Bool

Creates a directory (without contents) at a given path with given attributes.

func createSymbolicLink(atPath: String, pathContent: String) -> Bool

Creates a symbolic link identified by a given path that refers to a given location.

func pathContentOfSymbolicLink(atPath: String) -> String?

Returns the path of the directory or file that a symbolic link at a given path refers to.

func fileManager(FileManager, willProcessPath: String)

An NSFileManager object sends this message to a handler immediately before attempting to move, copy, rename, or delete, or before attempting to link to a given path.

func replaceItemAtURL(originalItemURL: NSURL, withItemAtURL: NSURL, backupItemName: String?, options: FileManager.ItemReplacementOptions) -> NSURL?

Replaces the contents of the item at the specified URL in a manner that ensures no data loss occurs.


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