* using log directory 'd:/Rcompile/CRANpkg/ade4.Rcheck'
* checking for file 'ade4/DESCRIPTION' ... OK
* checking if this is a source package ... OK
* checking whether package 'ade4' can be installed ... OK
* checking package directory ... OK
* checking for portable file names ... OK
* checking DESCRIPTION meta-information ... OK
* checking package dependencies ... ERROR
Packages required but not available:
  maptools spdep pixmap ape

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