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我正在尝试将文件从URL移到另一个文件，但是我收到code错误513。我知道这是一个NSFileWriteNoPermissionError。考虑到我首先创建了文件夹，因此我看不出这是怎么回事。

//self.video!.folderURL.path = /var/mobile/Containers/Data/Application/066BDB03-FD47-48D8-B6F8-932AFB174DF7/Documents/AV/769c504203024bae95b47d78d8fe9029
try? fileManager.createDirectory(atPath: self.video!.folderURL.path, withIntermediateDirectories: true, attributes: nil)

// Update permission for AV folder
do {
     let parentDirectoryPath = self.video!.folderURL.deletingLastPathComponent().path
     let result = try fileManager.setAttributes([FileAttributeKey.posixPermissions: 0o777], ofItemAtPath: parentDirectoryPath)
        print(result)
     } catch {
        print("Error = \(error)")
     }

// sourceURL = file:///private/var/mobile/Containers/Data/PluginKitPlugin/50D8B8DB-19D3-4DD6-93DD-55F37CF87EA7/tmp/trim.6D37DFD2-5F27-4AB9-B478-5FED8AA6ABD7.MOV
// self.url = file:///var/mobile/Containers/Data/Application/066BDB03-FD47-48D8-B6F8-932AFB174DF7/Documents/AV/0b0b6803e891780850152eeab450a2ae.mov
do {
     try fileManager.moveItem(at: sourceURL, to: self.url)
   } catch {
     QLogTools.logError("Error moving video clip file \(error)")
   }

错误

“无法移动错误域= NSCocoaErrorDomain代码= 513”“ trim.90A10B33-B884-419F-BAD9-65583531C3C3.MOV”，因为您无权访问“ AV”。UserInfo = {NSSourceFilePathErrorKey = / private / …