Re: [Rd] Require of gWidgetsRGtk2 fails: RGtk2.dll can't be found, but it's there

From: Janko Thyson <>
Date: Fri, 10 Jun 2011 14:31:01 +0200

On 10.06.2011 13:00, Gabor Grothendieck wrote:
> On Fri, Jun 10, 2011 at 6:04 AM, 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.
> 1. Use the automatically installed GTk2, not some other version.
Thanks for answering. I didn't even know there GTk2 already ships with R. Prof. Brian Ripley linked me to the readme file with recommendations with respect to an GTK2 distribution to use:

"What it means is that RGtk2.dll or one of the DLLs it depends on cannot be found. See the instructions at "

> 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.

My R distribution does not seem to have such a directory (standard windows R-2.13.0 installer from CRAN)
How do I manage to have this ...\GTk2-runtime\bin directory available?

Thanks a lot,
> 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]]


*Janko Thyson* <>

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