[R] cairoDevice.dll error, but it exists..?

[zubin]

Duncan, thx - installing GTK fixed the issue :)

-zubin


Duncan Murdoch wrote:
> On 5/25/2009 9:43 AM, zubin wrote:
>> Hello, running windows vista, R2.9.  Installed the following 
>> libraries: (*latticist*, *playwith* and *Cairo*)
>>
>> Wanted then to run, to evaluate the visualization features:
>>
>>> data(iris)
>>
>>> library(latticist)
>>
>>> latticist(iris)
>>
>>
>> However, i tested my desktop and laptop and get the following error 
>> after typing latticist(iris):
>>
>> latticist(iris)
>> Loading required package: playwith
>> Loading required package: cairoDevice
>> Error in inDL(x, as.logical(local), as.logical(now), ...) :
>> unable to load shared library 
>> 'C:/Users/luna/Documents/R/win-library/2.9/cairoDevice/libs/cairoDevice.dll': 
>> LoadLibrary failure:  The specified module could not be found.
>>
>> Error: package 'cairoDevice' could not be loaded
>>
>>
>>
>> However, i navigate to the location in the path above and i do see 
>> the cairoDevice.dll file, so i can't figure out what's going on.  
>> Again, i tested 2 machines, with R2.9 and Vista, same error on both.
>
>
> Don't you get a popup error dialog?  I do, and it says that 
> libgdk-win32-2.0-0.dll was not found.  Only when I click on okay does 
> it return to the console to tell me about the cairoDevice failure.  So 
> I think the real problem is with the libgdk not being present, and 
> that causes the cairoDevice dll to fail to load.  Windows doesn't tell 
> R about the reason, it just says it failed.
>
> The reason that library was not installed is that I didn't have RGtk2 
> installed properly.  Try library(RGtk2), and make sure it works (and 
> let it install GTK if it wants), and things should be fine.
>
> Duncan Murdoch
>