I am trying to get some of the zip files from a specific folder to my destination folder which contains a specific date range added in the file name so for example zip file contains a name such as FE1_ABS_202404240600.zip, FE1_ABS_202404240601.zip, FE1_ABS_202404240610.zip, etc

Now I have written a code which does extracts the file but after about 5 or 6 copy. It fails. Error message contains that ” the file ‘[sourcepath]FE1_ABS_202404240600.zip’ already exist.

I am unsure how can I remove this issue and copy all file between such date range

public static void getFilesNames() {
  string startDate = "04/24/2024";
  string endDate = "06/03/2024";
  DateTime tmpDate1 = DateTime.ParseExact(startDate, "MM/dd/yyyy", null);
  DateTime tmpDate2 = DateTime.ParseExact(endDate, "MM/dd/yyyy", null);

  string startdt = tmpDate1.ToString("yyyyMMdd");
  string enddt = tmpDate2.ToString("yyyyMMdd");

  DateTime dtStart = DateTime.Parse(startDate);
  DateTime dtEnd = DateTime.Parse(endDate);

  string sourcePath = @ "E:ReceivedFile";
  string destPath = @ " E:ProcessedFile";

  do {
    string partialName = "ABS";
    DirectoryInfo hdDirectoryInWhichToSearch = new DirectoryInfo(sourcePath);
    FileInfo[] filesInDir = hdDirectoryInWhichToSearch.GetFiles("*" + partialName + "_" + startdt + "*.zip*");

    foreach(FileInfo foreachPath in filesInDir) {
      string fullName = foreachPath.FullName;
      File.Copy(Path.Combine(sourcePath, foreachPath.ToString()), Path.Combine(destPath, foreachPath.ToString()));
    }
  } while (dtStart < dtEnd);
}

Checked if I have my duplicate zip files but seems I have unique files in my source. So why showing duplicate file error?