• using R version 2.15.3 (2013-03-01)
• using platform: i386-apple-darwin9.8.0 (32-bit)
• using session charset: UTF-8
• checking for file ‘MSeasy/DESCRIPTION’ ... OK
• checking extension type ... Package
• this is package ‘MSeasy’ version ‘5.3.3’
• checking package namespace information ... OK
• checking package dependencies ... ERROR
  Packages required but not available: ‘mzR’ ‘xcms’
  
  See the information on DESCRIPTION files in the chapter ‘Creating R
  packages’ of the ‘Writing R Extensions’ manual.
• elapsed time (check, wall clock): 0:01