error while starting R und XEmacs

"Unternährer Thomas, uth" uth at
Mon Feb 23 18:17:52 CET 2004

Thanks for your help... 
I just installed XEmacs-21.4.14 and it works fine.

below u can see my backtrace-buffer for XEmacs-21.5.b16.
(maybe I made something wrong during the installation...)

Thanks again


## backtrace-buffer 
## ========================================================================
Signaling: (invalid-state "Bogus value for `default-process-coding-system'" nil)
  start-process-internal("R" #<buffer "*R*"> "R" "--no-readline")
  apply(start-process-internal "R" #<buffer "*R*"> "R" "--no-readline")
  start-process("R" #<buffer "*R*"> "R" "--no-readline")
  apply(start-process "R" #<buffer "*R*"> "R" "--no-readline")
  comint-exec-1("R" #<buffer "*R*"> "R" ("--no-readline"))
  comint-exec(#<buffer "*R*"> "R" "R" nil ("--no-readline"))
  inferior-ess-make-comint("*R*" "R" "--no-readline ")
  ess-multi("R" #<buffer "*R*"> "--no-readline ")
  inferior-ess("--no-readline ")
  command-execute(R t)
  (dispatch-event "[internal]")

-----Original Message-----
From:	Stephen Eglen [mailto:stephen at]
Sent:	Sun 2/22/2004 3:28 PM
To:	Unternährer Thomas, uth
Cc:	ess-help at
Subject:	error while starting R und XEmacs
hi Thomas,

 > I just installed Redhat Fedora (I'm new on unix-like systems) and
 > tried to start R in XEmacs 21.5.b16.

 > I installed all XEmacs-Packages (sucessfully, I hope so) and put 
 > (require 'ess-site) in my init.el.
 > After typing M-x R the following error-message occurs:
 > Invalid state: Bogus value for 'default-process-coding-system', nil

Okay, a few things might help us here.

Do you have access to Emacs (21.2 or 21.3)?  If so, could you try it
on there and see if you get the same error?  I think that error sounds
like an XEmacs specific thing.  

Also, I can run ESS/R on XEmacs 21.4 (patch 12), can you try an older
version of XEmacs?  It looks like you are running a new release of
XEmacs, which we might need to look at.

Also, backtraces can help us debug the problem further.  Type
"M-x set-variable RET debug-on-error RET t RET".  Then type the
command that causes the error ("M-x R" here) and you should see a
*Backtrace* buffer containing debug information; send us that buffer.


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