[R] \dQuote in packages

[Rebecca Sela]

I am in the process of submitting a package to CRAN.  R CMD check ran successfully on the package on my local computer, using R version 2.1.1.  However, on the computers for CRAN (with version 2.10.0), the following errors occurred:

Warning in parse_Rd("./man/predict.Rd", encoding = "unknown") :
  ./man/predict.Rd:28: unknown macro '\dquote'
*** error on file ./man/predict.Rd
Error : ./man/predict.Rd:28: Unrecognized macro \dquote
Warning in parse_Rd("./man/print.Rd", encoding = "unknown") :
  ./man/print.Rd:17: unexpected UNKNOWN '\sideeffects'
Warning in parse_Rd("./man/simpleREEMdata.Rd", encoding = "unknown") :
  ./man/simpleREEMdata.Rd:10: unknown macro '\item'

Are \dquote, \sideeffects, and \item not supported in newer versions of R?  Is there some underlying problem that I should fix that makes these show up?

Thank you very much.

Rebecca