ACGaussian : <anonymous>: no visible global function definition for
  'qnorm'
ACGaussian : <anonymous>: no visible global function definition for
  'pnorm'
ACGaussian : <anonymous>: no visible global function definition for
  'runif'
ACGaussian: no visible global function definition for 'ginv'
ACGaussian: no visible global function definition for 'runif'
ACGaussian: no visible global function definition for 'rmvnorm'
ACt: no visible global function definition for 'qnorm'
ACt: no visible global function definition for 'pnorm'
ACt: no visible global function definition for 'runif'
ACt: no visible global function definition for 'ginv'
ACt: no visible global function definition for 'rmvnorm'
ACt: no visible global function definition for 'rpois'
ACt: no visible global function definition for 'dpois'
Bayesthresh: no visible global function definition for 'as.formula'
Bayesthresh: no visible binding for global variable 'contrasts'
MCGaussian: no visible global function definition for 'qnorm'
MCGaussian: no visible global function definition for 'pnorm'
MCGaussian: no visible global function definition for 'runif'
MCGaussian: no visible global function definition for 'ginv'
MCGaussian: no visible global function definition for 'rmvnorm'
MCGaussian: no visible global function definition for 'vec'
MCGaussian: no visible global function definition for 'sd'
MCt: no visible global function definition for 'qnorm'
MCt: no visible global function definition for 'pnorm'
MCt: no visible global function definition for 'runif'
MCt: no visible global function definition for 'ginv'
MCt: no visible global function definition for 'rmvnorm'
MCt: no visible global function definition for 'vec'
MCt: no visible global function definition for 'rpois'
MCt: no visible global function definition for 'dpois'
MCt: no visible global function definition for 'sd'
NCGaussian: no visible global function definition for 'qnorm'
NCGaussian: no visible global function definition for 'pnorm'
NCGaussian: no visible global function definition for 'runif'
NCGaussian: no visible global function definition for 'ginv'
NCGaussian: no visible global function definition for 'rmvnorm'
NCGaussian: no visible global function definition for 'rgamma'
NCGaussian: no visible global function definition for 'rdiric'
NCt: no visible global function definition for 'qnorm'
NCt: no visible global function definition for 'pnorm'
NCt: no visible global function definition for 'runif'
NCt: no visible global function definition for 'ginv'
NCt: no visible global function definition for 'rmvnorm'
NCt: no visible global function definition for 'rgamma'
NCt: no visible global function definition for 'rpois'
NCt: no visible global function definition for 'dpois'
NCt: no visible global function definition for 'rdiric'
UniComp: no visible global function definition for 'rgamma'
VecFromNames: no visible global function definition for 'as'
coef.Bayesthresh: no visible global function definition for 'mcmc'
createCm: no visible global function definition for 'is'
createCm: no visible global function definition for 'as'
createCm: no visible global function definition for 'new'
isNested: no visible global function definition for 'as'
isNested: no visible global function definition for 'new'
lmerFactorList : <anonymous>: no visible global function definition for
  'as'
lmerFactorList : <anonymous>: no visible global function definition for
  'validObject'
lmerFactorList : <anonymous>: no visible global function definition for
  'model.matrix'
lmerFactorList : <anonymous>: no visible binding for global variable
  'rBind'
lmerFactorList : <anonymous>: no visible global function definition for
  'drop0'
lmerFrames: no visible global function definition for 'model.response'
lmerFrames: no visible global function definition for 'is.empty.model'
lmerFrames: no visible global function definition for 'model.matrix'
lmerFrames: no visible global function definition for 'model.weights'
lmerFrames: no visible global function definition for 'model.offset'
mkZt: no visible binding for global variable 'rBind'
plot.random.effects: no visible global function definition for 'gray'
plot.random.effects: no visible global function definition for 'plot'
plot.random.effects: no visible global function definition for 'axis'
plot.random.effects: no visible global function definition for
  'segments'
plot.random.effects: no visible global function definition for 'box'
plot.random.effects: no visible global function definition for 'qnorm'
predict.Bayesthresh: no visible global function definition for 'coef'
predict.Bayesthresh: no visible global function definition for 'pnorm'
predict.Bayesthresh: no visible global function definition for
  'rankMatrix'
predict.Bayesthresh: no visible global function definition for 'pt'
random.effects: no visible global function definition for 'coef'
random.effects: no visible global function definition for 'mcmc'
Undefined global functions or variables:
  as as.formula axis box coef contrasts dpois drop0 ginv gray is
  is.empty.model mcmc model.matrix model.offset model.response
  model.weights new plot pnorm pt qnorm rBind rankMatrix rdiric rgamma
  rmvnorm rpois runif sd segments validObject vec
Consider adding
  importFrom("grDevices", "gray")
  importFrom("graphics", "axis", "box", "plot", "segments")
  importFrom("methods", "as", "is", "new", "validObject")
  importFrom("stats", "as.formula", "coef", "contrasts", "dpois",
             "is.empty.model", "model.matrix", "model.offset",
             "model.response", "model.weights", "pnorm", "pt", "qnorm",
             "rgamma", "rpois", "runif", "sd")
to your NAMESPACE file (and ensure that your DESCRIPTION Imports field
contains 'methods').