
Hello, 

I 've just re-installed R 2.9.0 on ubuntu 9.04.

I do not understand why I am unable to use simple device function such as jpeg(), png()...

> png()
Error in X11(paste("png::", filename, sep = ""), width, height, pointsize,  : 
  unable to start device PNG
In addition: Warning message:
In png() : no png support in this version of R


> capabilities()
    jpeg      png     tiff    tcltk      X11     aqua http/ftp  sockets 
   FALSE    FALSE    FALSE    FALSE     TRUE    FALSE     TRUE     TRUE 
  libxml     fifo   cledit    iconv      NLS  profmem    cairo 
    TRUE     TRUE    FALSE     TRUE     TRUE    FALSE    FALSE 

It's not really a problem because i use cairo but i would like to know the source of this error.

I checked the library as proposed in previous post : 

https://stat.ethz.ch/pipermail/r-help/2005-December/085177.html

but all of them (libpng, libjpeg...) are already installed.

Did someone ever find the source of this R Error ?

Thanks !

- Martial



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