[BioC] read.maimages problem under sun ?

[Amin Moghaddasi]

Hi list, 

I am using R.2.4.1 with limma 2.9.17 under sun2.7 to read "Targets.gpr" file. I've got the following error. Any help is appreciated.

> targets
       FileName cy3 cy5       date comment
1 NH39_01_1.gpr  A1  B2 01/01/2007      NA
2 NH39_01_2.gpr  B2  A1 01/02/2007      NA
3 NH39_02_1.gpr  A2  B3 01/03/2007      NA
4 NH39_02_2.gpr  B3  A2 01/04/2007      NA
5 NH39_03_1.gpr  A3  B4 01/05/2007      NA
6 NH39_03_2.gpr  B4  A3 01/06/2007      NA

> RG <- read.maimages(targets,source="genepix")
Error in `[.data.frame`(obj, , columns[[a]]) :
        undefined columns selected

> version               _
platform       sparc-sun-solaris2.7
arch           sparc
os             solaris2.7
system         sparc, solaris2.7
status
major          2
minor          4.1
year           2006
month          12
day            18
svn rev        40228
language       R
version.string R version 2.4.1 (2006-12-18)

> packageDescription("limma")
Package: limma
Version: 2.9.17
Date: 2007/04/04
Title: Linear Models for Microarray Data
Author: Gordon Smyth with contributions from Matthew Ritchie, Jeremy
        Silver, James Wettenhall, Natalie Thorne, Mette Langaas, Egil
        Ferkingstad, Marcus Davy, Francois Pepin and Dongseok Choi.
Maintainer: Gordon Smyth <smyth at wehi.edu.au>
Depends: R (>= 2.3.0), methods
Suggests: affy, marray, MASS, splines, sma, statmod (>= 1.2.2), vsn
LazyLoad: yes
Description: Data analysis, linear models and differential expression
        for microarray data.
License: LGPL
URL: http://bioinf.wehi.edu.au/limma
biocViews: Microarray, OneChannel, TwoChannel, DataImport,
        QualityControl, Preprocessing, Statistics,
        DifferentialExpression, MultipleComparisons, TimeCourse
Packaged: Wed Apr 4 15:49:28 2007; smyth
Built: R 2.4.1; ; 2007-05-16 11:40:26; unix

Best Regards
Amin.