[R] cannot load shared object /usr/lib/R/library/grDevices/libs//cairo.so

beltrand jammon101 at hotmail.com
Wed Mar 14 07:02:40 CET 2012

Hi, I am trying to test out the scripts here as a proof of concept


However, I am not able to reproduce the output graph in the browser.
Rscripts is working fine as I run the command 
"Rscript /home/username/R/testscript.R 1000"  for example, and a png graph
is output as expected, and I can output it to any folder where I have
permission by changing testscript.R. 

However I am not able to get the output on the browser.I checked the web
root on my test server (xampp for Linux) and found that a pdf file is
created instead (Rplots.pdf)

I checked xampp's error log and found these, I think it is the reason why a
png graph is not created by using php's exec() command.
"unable to load shared object '/usr/lib/R/library/grDevices/libs//cairo.so':
  /usr/lib/i386-linux-gnu/libfontconfig.so.1: undefined symbol:

I notice that  there are two forward slashes in "..grDevices/libs//cairo.so"
whereas it should be just "..grDevices/libs/cairo.so"
I am wondering if this is a problem. Also it seemed to be working before. It
somehow stops today.

I am using Ubuntu 11.04 and R 2.14.2 (from this ppa
and my test server is xampp for Linux, I would appreciate any help. Thank

View this message in context: http://r.789695.n4.nabble.com/cannot-load-shared-object-usr-lib-R-library-grDevices-libs-cairo-so-tp4471075p4471075.html
Sent from the R help mailing list archive at Nabble.com.

More information about the R-help mailing list