Hello list member:
I've recently had a problem in that I'm unable to quit an R Session. I
noticed this after the update to 2.8.0, but I believe I also noticed it
on another machine, in the previous version. It occurs on both linux
and Mac platforms. It only occurs when I start R in some particular
workspaces that have alot of objects in them; it does not occur if I
start R in an empty workspace. I dont have to do anything in the
workspace after starting R to get this to occur, and no packages are
loaded by default. Here's a summary from a Linux environment:
------------------------------------------
$ R
R version 2.8.0 (2008-10-20)
Copyright (C) 2008 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.
Natural language support but running in an English locale
R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.
Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.
[Previously saved workspace restored]
> search()
[1] ".GlobalEnv" "package:stats"
"package:graphics"
[4] "package:grDevices" "package:utils"
"package:datasets"
[7] "package:methods" "Autoloads"
"package:base"
> q()
Save workspace image? [y/n/c]: n
Error in .Last() : could not find function "validServerIsRunning"
> .Last
function ()
{
if (exists("fameRunning") && fameRunning())
fameStop()
if (validServerIsRunning())
endServerSession()
}
<environment: namespace:fame>
------------------------------------------
As the .Last function is referring to the fame package, I figure it must
be something to do with that. There are objects in the workspace that
require fame to be loaded, but at this point, I have not loaded the fame
package, or accessed those objects. If loaded, the same error occurs
when trying to quit.
Thanks in advance for any suggestions on how to troubleshoot this.
Dan
To solve the immediate problem of quitting R, you could try to define a dummy of the missing function, e.g. validServerIsRunning <- function(...) FALSE; and then quit(). This does of course ignore any potential problems of not "finalizing" the 'fame' package correctly. Alternatively, since the 'fame' package is not in your sessionInfo(), it might be that you have a local copy of its .Last() in the global environment. If so, maybe rm(.Last) is enough before quit():ing. My $.02 /Henrik On Mon, Nov 17, 2008 at 1:12 PM, Dan Slayback <dan.slayback at nasa.gov> wrote:> Hello list member: > > I've recently had a problem in that I'm unable to quit an R Session. I > noticed this after the update to 2.8.0, but I believe I also noticed it on > another machine, in the previous version. It occurs on both linux and Mac > platforms. It only occurs when I start R in some particular workspaces that > have alot of objects in them; it does not occur if I start R in an empty > workspace. I dont have to do anything in the workspace after starting R to > get this to occur, and no packages are loaded by default. Here's a summary > from a Linux environment: > > ------------------------------------------ > $ R > > R version 2.8.0 (2008-10-20) > Copyright (C) 2008 The R Foundation for Statistical Computing > ISBN 3-900051-07-0 > > R is free software and comes with ABSOLUTELY NO WARRANTY. > You are welcome to redistribute it under certain conditions. > Type 'license()' or 'licence()' for distribution details. > > Natural language support but running in an English locale > > R is a collaborative project with many contributors. > Type 'contributors()' for more information and > 'citation()' on how to cite R or R packages in publications. > > Type 'demo()' for some demos, 'help()' for on-line help, or > 'help.start()' for an HTML browser interface to help. > Type 'q()' to quit R. > > [Previously saved workspace restored] > >> search() > [1] ".GlobalEnv" "package:stats" "package:graphics" > [4] "package:grDevices" "package:utils" "package:datasets" > [7] "package:methods" "Autoloads" "package:base" > q() > Save workspace image? [y/n/c]: n > Error in .Last() : could not find function "validServerIsRunning" >> .Last > function () > { > if (exists("fameRunning") && fameRunning()) > fameStop() > if (validServerIsRunning()) > endServerSession() > } > <environment: namespace:fame> > > ------------------------------------------ > > As the .Last function is referring to the fame package, I figure it must be > something to do with that. There are objects in the workspace that require > fame to be loaded, but at this point, I have not loaded the fame package, or > accessed those objects. If loaded, the same error occurs when trying to > quit. > > Thanks in advance for any suggestions on how to troubleshoot this. > > Dan > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >
See the help for .Last:
Immediately _before_ terminating, the function '.Last()' is
executed if it exists and 'runLast' is true. If in interactive use
there are errors in the '.Last' function, control will be returned
to the command prompt, so do test the function thoroughly.
You can avoid it via arguments to q() (see its help). However, if the
'fame' package has been ill-mannered enough to put a .Last in your
workspace, then you can and should delete it and re-save the workspace.
I can't see the function "validServerIsRunning" in the current
fame
package, so it may be a legacy of a workspace from an earlier version.
Packages really should not be using the user's workspace, and in
particular not setting .Last there. A couple of packages do have .Last in
their space, but it is not guaranteed that their version will be visible:
reg.finalizer() is the way to do this in a package.
On Mon, 17 Nov 2008, Dan Slayback wrote:
> Hello list member:
>
> I've recently had a problem in that I'm unable to quit an R
Session. I
> noticed this after the update to 2.8.0, but I believe I also noticed it on
> another machine, in the previous version. It occurs on both linux and Mac
> platforms. It only occurs when I start R in some particular workspaces that
> have alot of objects in them; it does not occur if I start R in an empty
> workspace. I dont have to do anything in the workspace after starting R to
> get this to occur, and no packages are loaded by default. Here's a
summary
> from a Linux environment:
>
> ------------------------------------------
> $ R
>
> R version 2.8.0 (2008-10-20)
> Copyright (C) 2008 The R Foundation for Statistical Computing
> ISBN 3-900051-07-0
>
> R is free software and comes with ABSOLUTELY NO WARRANTY.
> You are welcome to redistribute it under certain conditions.
> Type 'license()' or 'licence()' for distribution details.
>
> Natural language support but running in an English locale
>
> R is a collaborative project with many contributors.
> Type 'contributors()' for more information and
> 'citation()' on how to cite R or R packages in publications.
>
> Type 'demo()' for some demos, 'help()' for on-line help, or
> 'help.start()' for an HTML browser interface to help.
> Type 'q()' to quit R.
>
> [Previously saved workspace restored]
>
>> search()
> [1] ".GlobalEnv" "package:stats"
"package:graphics"
> [4] "package:grDevices" "package:utils"
"package:datasets"
> [7] "package:methods" "Autoloads"
"package:base" > q()
> Save workspace image? [y/n/c]: n
> Error in .Last() : could not find function "validServerIsRunning"
>> .Last
> function ()
> {
> if (exists("fameRunning") && fameRunning())
> fameStop()
> if (validServerIsRunning())
> endServerSession()
> }
> <environment: namespace:fame>
>
> ------------------------------------------
>
> As the .Last function is referring to the fame package, I figure it must be
> something to do with that. There are objects in the workspace that require
> fame to be loaded, but at this point, I have not loaded the fame package,
or
> accessed those objects. If loaded, the same error occurs when trying to
quit.
>
> Thanks in advance for any suggestions on how to troubleshoot this.
>
> Dan
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595