System.NotImplementedException: FileExistAction.Ask not implemented
  File "Job/TaskHelpers.cs", line 446, in string TaskHelpers.HandleExistsFile(string filePath, TaskSettings taskSettings)
  File "Job/TaskHelpers.cs", line 462, in string TaskHelpers.HandleExistsFile(string folderPath, string fileName, TaskSettings taskSettings)
  File "Job/WorkerTask.cs", line 1003, in bool WorkerTask.DownloadFromURL(bool upload)
  File "Job/WorkerTask.cs", line 511, in bool WorkerTask.DoThreadJob()
  File "Job/WorkerTask.cs", line 264, in void WorkerTask.ThreadDoWork()
...
(3 additional frame(s) were not displayed)