[BioC] Expresso command error

[Lizhe Xu]

I thought that the following command in previous version of BioC was working, but with new version I got an error. So I must be wrong, what should the correct command be? 
Thanks.

> set<-expresso(data, normalize.method="invariantset", bg.correct.method="mas", pmcorrect.method="pmonly",summary.method="liwong")
Error in expresso(data, normalize.method = "invariantset", bg.correct.method = "mas",  : 
        unused argument(s) (bg.correct.method ...)

L