[ESS] emacsclient connection refused

[Sofía Sal Bregua]

I am using emacs22 with ess, when I try to open up a fix or edit window 
I get the message:

 > a<-1:10
 > fix(a)
emacsclient: connect: Connection refused
emacsclient: No socket or alternate editor.  Please use:

    --socket-name
    --server-file      (or environment variable EMACS_SERVER_FILE)
    --alternate-editor (or environment variable ALTERNATE_EDITOR)
Error en edit(name, file, title, editor) :
  problema al ejecutar el editor emacsclient


any solution.
Thanks,
Sofia