[BioC] LIMMA

[Daniel Fortin]

I have a problem when running LIMMA. I get the following error message:
Error in grep(protectMetachar(allcnames[i]), text.to.search) :
  regular expression is invalid in this locale
Calls: read.maimages -> read.columns -> grep

The code is below:

> library(limma)
>
> targets <-readTargets(file="Targets.txt")
> RG <-read.maimages(targets$Filename, source="genepix",wt.fun=wtflags(weight=0,cutoff=-50))

Does anyone know how to fix this error?

Thanks,

D