I have created a Bundle to copy a file to a directory at user login. (oracle tns file)

For some reason I keep getting these error messages on some of the managed devices. (see below)

Error: [6/20/13 2:05:46 PM] BundleManager BUNDLE.BundleStateSaveError BUNDLE.BundleStateSaveError{System.IO.IOException: Cannot create a file when that file already exists.

at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.__Error.WinIOError()
at System.IO.File.Move(String sourceFileName, String destFileName)}

any ideas?