Re: [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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