"Scan was completed with error"

[camber]

I was trying to do a scan of a file and recieved this error message...

"Scan was completed with error.
  Error:Cannot create a file when that file already exists"

Any clues as to what caused this and how to fix it?

thanx for any and all help

[Lisandro]

Can you clean your temporary files?

1. To do this go to Internet explorer >Tools > Internet options > Delete files > Click delete all offline content (just to be sure) > click ok.
2. Delete the files into C:\Windows\Temp and C:\Documents and Settings\<your name>\Local configurations\Temp
3. Scan again

Or you can download and install temporary washer applications.
Maybe avast is trying to unpack some archive file and the file already exists (cached).