>From my experience, that is often an indication that you built R from source but didn't pay attention to the cairo/pango dependencies. You can either install R from a repository, or make sure you have all the dependencies installed before you build R from source (e.g. for Ubuntu, use apt-get build-dep r-base-dev).
Regards, Yihui -- Yihui Xie <xieyi...@gmail.com> Web: http://yihui.name On Tue, Aug 11, 2015 at 8:32 AM, Ramiro Barrantes <ram...@precisionbioassay.com> wrote: > Hello, > > I have the following reproducible knitr document: > > \documentclass{article} > \usepackage[sc]{mathpazo} > \usepackage[T1]{fontenc} > \usepackage{geometry} > > \begin{document} > > <<test,dev="png",echo=FALSE>>= > library(lattice) > xyplot(1:2~1:2) > @ > > \end{document} > > > but knitr is giving me an error: > > Quitting from lines 9-11 (test.Rnw) > Error in .External2(C_X11, paste("png::", filename, sep = ""), g$width, : > unable to start device PNG > In addition: Warning message: > In (function (filename = "Rplot%03d.png", width = 480, height = 480, : > unable to open connection to X11 display '' > > I don't have X11 installed in this machine and I was hoping not to have to. > I am guessing that this is the problem right? > > Any suggestions?? > > Thanks, > Ramiro ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
