ess-mode 5.2.0; void-variable comint-last-input-end

[Rodney Sparapani]

>
>Hi,
>
>I am trying to upgrade to ESS 5.2.0 (from 5.1.24) 
>http://article.gmane.org/gmane.emacs.ess.general/112
>but when I start XEmacs and 
>each time I send a line to the R process I get the error
>
>(error/warning) Error in process filter: (void-variable
>comint-last-input-end)
>
...
>Package: ess-mode 5.2.0
>I am on Windows XP, running R 1.9.0 (patched).
>Emacs  : XEmacs 21.4 (patch 6) "Common Lisp (Windows)" 
>[Lucid] (i586-pc-win32) of Mon Dec 17 2001 on TSUNAMI
>
>Regards,
>
>John.

John:

comint-last-input-end is an undocumented variable that is part of comint.  
Apparently, it is related to some new functionality that we have been working on 
for 5.2.0.  A more robust implementation should be released shortly as 5.2.1.  
But, that is unlikely to be of help to you for this problem.  So, you can either 
upgrade to a more recent version of xemacs and comint or just try this in 
init.el prior to loading ESS:
(setq comint-last-input-end nil)

Rodney Sparapani              Medical College of Wisconsin
Sr. Biostatistician           Patient Care & Outcomes Research
rsparapa at mcw.edu              http://www.mcw.edu/pcor
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