• using R version 3.6.2 (2019-12-12)
• using platform: x86_64-apple-darwin15.6.0 (64-bit)
• using session charset: UTF-8
• checking for file ‘GMMAT/DESCRIPTION’ ... OK
• this is package ‘GMMAT’ version ‘1.3.1’
• package encoding: UTF-8
• checking package namespace information ... OK
• checking package dependencies ... OK
• checking if this is a source package ... OK
• checking if there is a namespace ... OK
• checking for executable files ... OK
• checking for hidden files and directories ... OK
• checking for portable file names ... OK
• checking for sufficient/correct file permissions ... OK
• checking whether package ‘GMMAT’ can be installed ... [46s/46s] ERROR
  Installation failed.
  See ‘/Volumes/SSD-Data/Builds/R-dev-web/QA/Simon/packages/el-capitan-x86_64/results/3.6/GMMAT.Rcheck/00install.out’ for details.
• DONE
  Status: 1 ERROR
  
  See https://www.r-project.org/nosvn/R.check/r-oldrel-macos-x86_64/GMMAT-00install.html for details.