snp.plotter : draw.plot.grid.setup: no visible global function
  definition for 'viewport'
snp.plotter : draw.plot.grid.setup: no visible global function
  definition for 'grid.layout'
snp.plotter : draw.plot.grid.setup: no visible global function
  definition for 'pushViewport'
snp.plotter : draw.plot.grid.setup: no visible global function
  definition for 'vpTree'
snp.plotter : draw.plot.grid.setup: no visible global function
  definition for 'vpList'
snp.plotter : draw.plot.grid.setup: no visible global function
  definition for 'textGrob'
snp.plotter : draw.plot.grid.setup: no visible global function
  definition for 'gpar'
snp.plotter : draw.plot.grid.setup: no visible global function
  definition for 'gTree'
snp.plotter : draw.plot.grid.setup: no visible global function
  definition for 'gList'
snp.plotter : draw.plot.grid.setup: no visible global function
  definition for 'grid.draw'
snp.plotter : draw.plot.grid.setup: no visible global function
  definition for 'grid.lines'
snp.plotter : draw.plot.grid.setup: no visible global function
  definition for 'grid.xaxis'
snp.plotter : draw.plot.grid.setup: no visible global function
  definition for 'grid.text'
snp.plotter : draw.plot.grid.setup: no visible global function
  definition for 'grid.edit'
snp.plotter : draw.plot.grid.setup: no visible global function
  definition for 'grid.yaxis'
snp.plotter : draw.plot.grid.setup: no visible global function
  definition for 'segmentsGrob'
snp.plotter : draw.plot.grid.setup: no visible global function
  definition for 'unit'
snp.plotter : draw.legend: no visible global function definition for
  'viewport'
snp.plotter : draw.legend: no visible global function definition for
  'pushViewport'
snp.plotter : draw.legend: no visible global function definition for
  'gTree'
snp.plotter : draw.legend: no visible global function definition for
  'textGrob'
snp.plotter : draw.legend: no visible global function definition for
  'gpar'
snp.plotter : draw.legend: no visible global function definition for
  'pointsGrob'
snp.plotter : draw.legend: no visible global function definition for
  'grid.draw'
snp.plotter : draw.legend: no visible global function definition for
  'popViewport'
snp.plotter : draw.plot.grid.snp.names: no visible global function
  definition for 'textGrob'
snp.plotter : draw.plot.grid.snp.names: no visible global function
  definition for 'unit'
snp.plotter : draw.plot.grid.snp.names: no visible global function
  definition for 'gpar'
snp.plotter : draw.plot.grid.ss: no visible global function definition
  for 'grid.text'
snp.plotter : draw.plot.grid.ss: no visible global function definition
  for 'gpar'
snp.plotter : draw.plot.grid.ss: no visible global function definition
  for 'grid.points'
snp.plotter : draw.plot.grid.hap: no visible global function definition
  for 'grid.text'
snp.plotter : draw.plot.grid.hap: no visible global function definition
  for 'grid.points'
snp.plotter : draw.plot.grid.hap: no visible global function definition
  for 'gpar'
snp.plotter : draw.plot.grid.hap: no visible global function definition
  for 'grid.lines'
snp.plotter : draw.plot.ld.plot: no visible global function definition
  for 'rectGrob'
snp.plotter : draw.plot.ld.plot: no visible global function definition
  for 'gpar'
snp.plotter : draw.plot.ld.plot: no visible global function definition
  for 'textGrob'
snp.plotter : draw.plot.ld.plot: no visible global function definition
  for 'viewport'
snp.plotter : draw.plot.ld.plot: no visible global function definition
  for 'gTree'
snp.plotter : draw.plot.ld.plot: no visible global function definition
  for 'gList'
snp.plotter : draw.plot.ld.plot: no visible global function definition
  for 'popViewport'
snp.plotter : draw.plot.ld.plot: no visible global function definition
  for 'unit'
snp.plotter : draw.plot.ld.plot: no visible global function definition
  for 'pushViewport'
snp.plotter : draw.plot.ld.plot: no visible global function definition
  for 'grid.draw'
snp.plotter: no visible global function definition for 'grid.newpage'