producing SVG files

I am trying to use the RSvgDevice package to produce some SVG graphs which I 
want to edit with Inkscape 0.42.
Under Linux (Kubuntu 5.04) I use the following:

library(RSvgDevice)
plot(1:10, 1:10)
devSVG(file = "/home/adi/Rplots.svg", width = 10, height = 8,
bg = "white", fg = "black", onefile=TRUE, xmlHeader=TRUE)

but when I tried to load the file into Inkscape it complained about finding an 
empty file.

Then I tried the example by:

devSVG()
plot(1:11,(-5:5)^2, type='b', main="Simple Example Plot")
dev.off()

and then again

devSVG(file = "/home/adi/Rplots.svg", width = 10, height = 8,
bg = "white", fg = "black", onefile=TRUE, xmlHeader=TRUE)

with the same result.
Could you please point me to the right direction, please?
Thank you in advance,
Adrian

Adrian Dusa
Romanian Social Data Archive
1, Schitu Magureanu Bd
050025 Bucharest
Romania
Tel./Fax: +40 21 3126618 \
              +40 21 3120210 / int.101