[R-SIG-Mac] In svg("tst.svg") : failed to load cairo DLL

[Spencer Graves]

THANKS, Prof. Ripley.  That fixed the problem.  Spencer Graves


[please excuse a problem with delayed detection of an error with 
autocomplete.]


On 8/7/21 12:05 AM, Prof Brian Ripley wrote:
> Install (or re-install) XQuartz.  As the R-admin manual §4 says
> 
> Various parts of the build require XQuartz to be installed: see 
> https://www.xquartz.org/releases.  These include the tcltk package and 
> the X11 device: attempting to use these without XQuartz will if possible 
> remind you. This is also needed for some builds of the 
> cairographics-based devices (which are not often used on macOS) such as 
> png(type = "cairo").
> 
> svg() is a cairographics-based device .
> 
> 
> 
> On 06/08/2021 22:12, Spencer Graves wrote:
>> Hello:
>>
>>
>>        In R 4.1.0 under macOS 11.4, 'svg("tst.svg")' says, "failed to 
>> load cairo DLL".
>>
>>
>>        This works fine under Windows 10.  (I tested under RStudio 
>> 1.4.1106, R terminal and R Console all with the same results.)
>>
>>
>>        The first time I try "svg('tst.svg')" in a new R session, I get 
>> a longer message;  see below for that and for sessionInfo().  When I 
>> repeat "svg('tst.svg')", I get only "failed to load cairo DLL".
>>
>>
>>        Suggestions?
>>        Thanks,
>>        Spencer Graves
>>
>>
>> svg('tst.svg')
>> Warning messages:
>> 1: In grSoftVersion() :
>>    unable to load shared object 
>> '/Library/Frameworks/R.framework/Resources/modules//R_X11.so':
>>    dlopen(/Library/Frameworks/R.framework/Resources/modules//R_X11.so, 
>> 6): Library not loaded: /opt/X11/lib/libSM.6.dylib
>>    Referenced from: 
>> /Library/Frameworks/R.framework/Versions/4.1/Resources/modules/R_X11.so
>>    Reason: image not found
>> 2: In cairoVersion() :
>>    unable to load shared object 
>> '/Library/Frameworks/R.framework/Resources/library/grDevices/libs//cairo.so': 
>>
>>
>> dlopen(/Library/Frameworks/R.framework/Resources/library/grDevices/libs//cairo.so, 
>> 6): Library not loaded: /opt/X11/lib/libXrender.1.dylib
>>    Referenced from: 
>> /Library/Frameworks/R.framework/Versions/4.1/Resources/library/grDevices/libs/cairo.so 
>>
>>    Reason: image not found
>> 3: In svg("tst.svg") : failed to load cairo DLL
>>  > sessionInfo()
>> R version 4.1.0 (2021-05-18)
>> Platform: x86_64-apple-darwin17.0 (64-bit)
>> Running under: macOS Big Sur 10.16
>>
>> Matrix products: default
>> LAPACK: 
>> /Library/Frameworks/R.framework/Versions/4.1/Resources/lib/libRlapack.dylib 
>>
>>
>> locale:
>> [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
>>
>> attached base packages:
>> [1] stats     graphics  grDevices utils     datasets  methods   base
>>
>> loaded via a namespace (and not attached):
>> [1] compiler_4.1.0 tools_4.1.0
>>  >
>>
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> 
>