cummeta: no visible binding for global variable ‘na.fail’
forestplot: no visible global function definition for ‘plot.new’
funnelplot.default: no visible global function definition for ‘qnorm’
funnelplot.default: no visible global function definition for ‘plot’
funnelplot.default: no visible global function definition for ‘par’
funnelplot.default: no visible global function definition for
  ‘segments’
funnelplot.default: no visible global function definition for ‘abline’
funnelplot.default: no visible global function definition for ‘points’
meta.DSL: no visible binding for global variable ‘na.fail’
meta.DSL: no visible global function definition for ‘pchisq’
meta.MH: no visible binding for global variable ‘na.fail’
meta.MH: no visible global function definition for ‘pchisq’
meta.colors: no visible global function definition for ‘par’
meta.summaries: no visible binding for global variable ‘na.fail’
meta.summaries: no visible global function definition for ‘pchisq’
metaplot: no visible global function definition for ‘qnorm’
metaplot: no visible global function definition for ‘par’
metaplot: no visible global function definition for ‘plot’
metaplot: no visible global function definition for ‘axis’
metaplot: no visible global function definition for ‘abline’
metaplot: no visible global function definition for ‘lines’
metaplot: no visible global function definition for ‘text’
metaplot: no visible global function definition for ‘rect’
metaplot: no visible global function definition for ‘polygon’
plot.meta.cum: no visible global function definition for ‘title’
plot.meta.cum: no visible global function definition for ‘abline’
plot.meta.cum: no visible global function definition for ‘qnorm’
print.meta.DSL: no visible global function definition for ‘qnorm’
print.meta.MH: no visible global function definition for ‘qnorm’
print.meta.summaries: no visible global function definition for ‘qnorm’
summary.meta.DSL: no visible global function definition for ‘qnorm’
summary.meta.MH: no visible global function definition for ‘qnorm’
summary.meta.cum: no visible global function definition for ‘qnorm’
summary.meta.summaries: no visible global function definition for
  ‘qnorm’
Undefined global functions or variables:
  abline axis lines na.fail par pchisq plot plot.new points polygon
  qnorm rect segments text title
Consider adding
  importFrom("graphics", "abline", "axis", "lines", "par", "plot",
             "plot.new", "points", "polygon", "rect", "segments", "text",
             "title")
  importFrom("stats", "na.fail", "pchisq", "qnorm")
to your NAMESPACE file.