Tramp 2.15 signals error when opening directory with Emacs 21.4 (Ubuntu)

[Tony Martínez]

Hi,

I built and installed Tramp 2.15 on Ubuntu, Emacs 21.3.1.  I tried to open a
remote directory /tmp on machine "redhat" using C-x C-f and got the following
backtrace:

Debugger entered--Lisp error: (args-out-of-range 1 12)
  byte-code(Z`|" [beg 7] 2)
  dired-insert-directory("/ssh:redhat:/tmp/" "-al" nil t)
  dired-readin-insert("/ssh:redhat:/tmp/")
  dired-readin("/ssh:redhat:/tmp/" #<buffer tmp<2>>)
  dired-internal-noselect("/ssh:redhat:/tmp/" nil)
  dired-noselect("/ssh:redhat:/tmp")
  run-hook-with-args-until-success(dired-noselect "/ssh:redhat:/tmp")
  find-file-noselect("/redhat:/tmp" nil nil 1)
  find-file("/redhat:/tmp" 1)
  call-interactively(find-file)

Is remote dired supported?  Does this version of Tramp not support Emacs 21.3.1?
 The INSTALL file led me to believe that Emacs 21 was supported.  File
completion etc. seems to work ok, just not dired.

Any help on how to work around this would be much appreciated.

Thanks very much in advance,

--Tony