R devel - Jun 2011 - Require of gWidgetsRGtk2 fails: RGtk2.dll can't be found, but it's there

Dear list,

I've been trying to get gWidgets/gWidgetsRGtk2 to run every other month 
for a while, but somehow I simply can't figure out what's going wrong.

I tried several distributions of the GTK runtime environment for Windows 
(http://downloads.sourceforge.net/gladewin32/gtk-2.12.9-win32-1.exe as 
described in the package's vignette, 
http://ftp.gnome.org/pub/gnome/binaries/win32/gtk+/2.22/gtk+-bundle_2.22.1-20101227_win32.zip)

I also included GTK in my Windows PATH.

Yet, when I run 'require(gWidgetsRGtk2)', R complains that the RGtk2.dll
can't be found/loaded (see below). But this file definitely exists. I'm 
running R-2.13.0 from a USB Device but made sure that args 'destdir' and
'lib' are set propperly in 'install.packages'.

Loading required package: gWidgetsRGtk2
Loading required package: gWidgets
Error in inDL(x, as.logical(local), as.logical(now), ...) :
   unable to load shared object 
'R:/Apps/R/R-2.13.0/library/RGtk2/libs/i386/RGtk2.dll':
   LoadLibrary failure:  Das angegebene Modul wurde nicht gefunden.

Failed to load RGtk2 dynamic library, attempting to install it.
Learn more about GTK+ at http://www.gtk.org
If the package still does not load, please ensure that GTK+ is installed 
and that it is on your PATH environment variable
IN ANY CASE, RESTART R BEFORE TRYING TO LOAD THE PACKAGE AGAIN
Error : .onAttach failed in attachNamespace() for 'gWidgetsRGtk2',
details:
   call: .Call(name, ..., PACKAGE = PACKAGE)
   error: C symbol name "S_gtk_icon_factory_new" not in DLL for
package
"RGtk2"

Best regards,
Janko

R version 2.13.0 (2011-04-13)
Platform: i386-pc-mingw32/i386 (32-bit)

locale:
[1] LC_COLLATE=German_Germany.1252  LC_CTYPE=German_Germany.1252
[3] LC_MONETARY=German_Germany.1252 LC_NUMERIC=C
[5] LC_TIME=German_Germany.1252

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

other attached packages:
[1] gWidgets_0.0-44

loaded via a namespace (and not attached):
[1] gWidgetsRGtk2_0.0-74 RGtk2_2.20.12        tools_2.13.0
 >

On Fri, Jun 10, 2011 at 6:04 AM, Janko Thyson
<janko.thyson.rstuff at googlemail.com> wrote:
> Dear list,
>
> I've been trying to get gWidgets/gWidgetsRGtk2 to run every other month
for
> a while, but somehow I simply can't figure out what's going wrong.
>
1. Use the automatically installed GTk2, not some other version.

2. Note that the automatically installed one will be at
...\GTk2-runtime\bin and that will be put at the *end* of your PATH.
Change it so that its at the beginning of your PATH to be sure its not
picking up something else.

3. If you are changing the path through the control panel and starting
R from the command line note that your new path won't be picked up in
old command line sessions so start a new command line session to start
R.

4. When you start a new R session double check that the automatically
installed ...\GTk2-runtime\bin is at the beginning of your path:

         strsplit(Sys.getenv("PATH"), ";")[[1]]


-- 
Statistics & Software Consulting
GKX Group, GKX Associates Inc.
tel: 1-877-GKX-GROUP
email: ggrothendieck at gmail.com

On Fri, 10 Jun 2011, Janko Thyson wrote:
> Dear list,
>
> I've been trying to get gWidgets/gWidgetsRGtk2 to run every other month
for a
> while, but somehow I simply can't figure out what's going wrong.
Your subject line indicates your confusion.  It does not say RGtk2.dll 
cannot be found (at least, the English version of the message does not 
say so).

What it means is that RGtk2.dll or one of the DLLs it depends on 
cannot be found.  See the instructions at
http://cran.r-project.org/bin/windows/contrib/2.13/@ReadMe

It is Microsoft's error message, not ours.
>
> I tried several distributions of the GTK runtime environment for Windows 
> (http://downloads.sourceforge.net/gladewin32/gtk-2.12.9-win32-1.exe as 
> described in the package's vignette, 
>
http://ftp.gnome.org/pub/gnome/binaries/win32/gtk+/2.22/gtk+-bundle_2.22.1-20101227_win32.zip)
>
> I also included GTK in my Windows PATH.
>
> Yet, when I run 'require(gWidgetsRGtk2)', R complains that the
RGtk2.dll
> can't be found/loaded (see below). But this file definitely exists.
I'm
> running R-2.13.0 from a USB Device but made sure that args
'destdir' and
> 'lib' are set propperly in 'install.packages'.
>
> Loading required package: gWidgetsRGtk2
> Loading required package: gWidgets
> Error in inDL(x, as.logical(local), as.logical(now), ...) :
>  unable to load shared object 
> 'R:/Apps/R/R-2.13.0/library/RGtk2/libs/i386/RGtk2.dll':
>  LoadLibrary failure:  Das angegebene Modul wurde nicht gefunden.
>
> Failed to load RGtk2 dynamic library, attempting to install it.
> Learn more about GTK+ at http://www.gtk.org
> If the package still does not load, please ensure that GTK+ is installed
and
> that it is on your PATH environment variable
> IN ANY CASE, RESTART R BEFORE TRYING TO LOAD THE PACKAGE AGAIN
> Error : .onAttach failed in attachNamespace() for 'gWidgetsRGtk2',
details:
>  call: .Call(name, ..., PACKAGE = PACKAGE)
>  error: C symbol name "S_gtk_icon_factory_new" not in DLL for
package
> "RGtk2"
>
> Best regards,
> Janko
>
> R version 2.13.0 (2011-04-13)
> Platform: i386-pc-mingw32/i386 (32-bit)
>
> locale:
> [1] LC_COLLATE=German_Germany.1252  LC_CTYPE=German_Germany.1252
> [3] LC_MONETARY=German_Germany.1252 LC_NUMERIC=C
> [5] LC_TIME=German_Germany.1252
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
>
> other attached packages:
> [1] gWidgets_0.0-44
>
> loaded via a namespace (and not attached):
> [1] gWidgetsRGtk2_0.0-74 RGtk2_2.20.12        tools_2.13.0
>>
>
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
>
-- 
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