Help on using read.Agilent

Hello

I am new to R and am trying to read Agilent microarray files using 
read.Agilent in the marray library.

Please see cammand line arguments below:

hcc.targets <- read.marrayInfo(file.path(data.dir, "target.text"))
hcc.layout <- read.marrayLayout(fname=file.path(data.dir, "layout.text"), 

ngr=1, ngc=1, nsr=105, nsc=215, ctl.col=6, skip=0)

 hcc.gnames <- read.marrayInfo(file.path(data.dir, "layout.text"), 

info_id=4:5, labels=4, skip=10)

fnames <- dir(path=data.dir, pattern=paste("*", ".txt", sep="\."))

hcc <- read.Agilent(fnames, path="data.dir", name.Gf="gMedianSignal", 

name.Gb="gBGMedianSignal", name.Rf = "rMedianSignal", name.Rb = 
"rBGMedianSignal", layout=hcc.layout, gnames=hcc.gnames, targets=hcc.targets, 
skip=10, sep="\t", quote="\"", DEBUG=TRUE)

However I am getting an error:

Error in read.Agilent(fnames, path = "data.dir", name.Gf = "gMedianSignal" ,  
:
        Object "descript" not found

I have checked the file and there doesn't appear to be any problems opening it 
and there are no strange characters.

I am not sure what I am doing wrong or what to try next.

Can you please help?

Many thanks in advance.
Archana Sharma-Oates