IntInNode: no visible global function definition for ‘lines’
in2usrX: no visible global function definition for ‘par’
in2usrY: no visible global function definition for ‘par’
isColor : <anonymous>: no visible global function definition for
  ‘col2rgb’
mixColfun: no visible global function definition for ‘col2rgb’
mixColfun: no visible binding for global variable ‘weighted.mean’
mixColfun: no visible global function definition for ‘rgb’
mixInts: no visible global function definition for ‘median’
semCors: no visible global function definition for ‘cov2cor’
semCors: no visible global function definition for ‘text’
semCors: no visible global function definition for ‘par’
semPaths: no visible global function definition for ‘rainbow’
semPaths: no visible global function definition for ‘par’
semPaths: no visible global function definition for ‘median’
semPaths: no visible global function definition for ‘ave’
semPaths: no visible global function definition for
  ‘packageDescription’
semPaths: no visible global function definition for ‘pnorm’
semPlotModel.factanal: no visible global function definition for
  ‘loadings’
semPlotModel.mplus.model: no visible global function definition for
  ‘readModels’
semPlotModel.principal: no visible global function definition for
  ‘loadings’
semPlotModel.princomp: no visible global function definition for
  ‘loadings’
semPlotModel_MxRAMModel: no visible global function definition for
  ‘cov’
standcoefmsem: no visible global function definition for ‘coef’
usr2inX: no visible global function definition for ‘par’
usr2inX2: no visible global function definition for ‘par’
usr2inY: no visible global function definition for ‘par’
usr2inY2: no visible global function definition for ‘par’
Undefined global functions or variables:
  ave coef col2rgb cov cov2cor lines loadings median packageDescription
  par pnorm rainbow readModels rgb text weighted.mean
Consider adding
  importFrom("grDevices", "col2rgb", "rainbow", "rgb")
  importFrom("graphics", "lines", "par", "text")
  importFrom("stats", "ave", "coef", "cov", "cov2cor", "loadings",
             "median", "pnorm", "weighted.mean")
  importFrom("utils", "packageDescription")
to your NAMESPACE file.