• using R version 4.0.2 (2020-06-22)
• using platform: x86_64-apple-darwin17.0 (64-bit)
• using session charset: UTF-8
• checking for file ‘maGUI/DESCRIPTION’ ... OK
• checking extension type ... Package
• this is package ‘maGUI’ version ‘3.0’
• checking package namespace information ... OK
• checking package dependencies ... ERROR
  Package required but not available: ‘ssize’
  
  Packages suggested but not available for checking:
    'GEOmetadb', 'KEGGREST', 'KEGGgraph', 'pdInfoBuilder', 'lumi',
    'simpleaffy'
  
  See section ‘The DESCRIPTION file’ in the ‘Writing R Extensions’
  manual.
• DONE
  Status: 1 ERROR
• using check arguments '--no-clean-on-error '