A writable copy of <File> already exists

When you get a VSS file, the file is tagged as read-only. You cannot modify the file. When you check out the file for modification, the read-only flag is deleted. When you check it in, the file is flagged read-only again. This error has the following cause and solution:

• You attempted to use the Get Latest Version command on a file that already exists on your hard disk in read/write form. If the local copy is read/write, you probably have it checked out; VSS does not replace the file, and displays this error message.

  Click Yes or Yes All to replace the file or files with the current version in the VSS database.

  Click No or No All to not replace the file(s).

  Click Cancel to cancel the Get Latest Version command.