After a long absence from using ESS with R in XEmacs, I am beginning to use ESS now in Emacs. However, I have a problem when trying to use help() or C-c C-v in an R session.

While running R in emacs in text or gui mode and trying to get help by any method, I get an ESS Help buffer in a new window with only the following message:


emacsclient: file name or argument required
Try 'emacsclient --help' for more information

I can't seem to get any help page to load. I presume there is something wrong with my setup, but I can't find information about how to correct this problem. Can someone tell me what I need to do to set up ESS correctly on my system?


I include relevant system info below. Let me know if I have left something out that will help you evaluate this problem:

When I start an R session, I get the following:


> if(identical(getOption('pager'), file.path(R.home('bin'), 'pager'))) # rather take the ESS one + options(pager='cat') > options(STERM='iESS', str.dendrogram.last="'", editor='emacsclient', pager='emacsclient', help.pager='emacsclient', show.error.locations\
 =TRUE)

Fedora fc27
GNU Emacs 25.3.1
with ESS 16.10
from Fedora packages:
emacs-ess-16.10-4.fc27.noarch
emacs-common-ess-16.10-4.fc27.noarch

In my .emacs file I have:

(require 'ess-site)


(setq ess-source-directory (lambda () (concat ess-directory "src/"))) (setq ess-dump-filename-template "%s.R") (setq auto-mode-alist (append '(("\\.[Rr]t\\'" . R-transcript-mode)) auto-mode-alist))

> sessionInfo() R version 3.4.2 (2017-09-28) Platform: x86_64-redhat-linux-gnu (64-bit) Running under: Fedora 27 (Workstation Edition)


Matrix products: default BLAS/LAPACK: /usr/lib64/R/lib/libRblas.so


locale: [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 [5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8 [7] LC_PAPER=en_US.UTF-8 LC_NAME=C [9] LC_ADDRESS=C LC_TELEPHONE=C [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C


attached base packages: [1] stats graphics grDevices utils datasets methods base


loaded via a namespace (and not attached):
 [1] compiler_3.4.2 tools_3.4.2


Thanks,
Bill

--
William D. McCoy
Geosciences
University of Massachusetts
Amherst, MA 01003

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