• using R version 2.14.2 (2012-02-29)
• using platform: i386-pc-mingw32 (32-bit)
• using session charset: ISO8859-1
• checking for file 'glmnet/DESCRIPTION' ... OK
• checking extension type ... Package
• this is package 'glmnet' version '1.7.4'
• checking package namespace information ... OK
• checking package dependencies ... ERROR
  Package required and available but unsuitable version: 'Matrix'
  
  See the information on DESCRIPTION files in the chapter 'Creating R
  packages' of the 'Writing R Extensions' manual.