* using log directory 'd:/Rcompile/CRANpkg/local/2.4/irtoys.Rcheck'
* using R version 2.4.1 (2006-12-18)
* checking for file 'irtoys/DESCRIPTION' ... OK
* checking extension type ... Package
* this is package 'irtoys' version '0.1.0'
* checking package dependencies ... ERROR
Packages required but not available:
  ltm

See the information on DESCRIPTION files in the chapter 'Creating R
packages' of the 'Writing R Extensions' manual.