Error(s) in re-building vignettes:
--- re-building 'gelS4.Rnw' using knitr
Warning in log(1 - gml) : NaNs produced
Warning in nlminb(lambda0, fct, gradient = Dfct, hessian = DDfct, X = gmat,  :
  NA/NaN function evaluation
Warning in log(1 - gml) : NaNs produced
Warning in nlminb(lambda0, fct, gradient = Dfct, hessian = DDfct, X = gmat,  :
  NA/NaN function evaluation
Warning in log(1 - gml) : NaNs produced
Warning in nlminb(lambda0, fct, gradient = Dfct, hessian = DDfct, X = gmat,  :
  NA/NaN function evaluation
Warning in log(1 - gml) : NaNs produced
Warning in nlminb(lambda0, fct, gradient = Dfct, hessian = DDfct, X = gmat,  :
  NA/NaN function evaluation
Warning in log(1 - gml) : NaNs produced
Warning in nlminb(lambda0, fct, gradient = Dfct, hessian = DDfct, X = gmat,  :
  NA/NaN function evaluation
Warning in log(1 - gml) : NaNs produced
Warning in nlminb(lambda0, fct, gradient = Dfct, hessian = DDfct, X = gmat,  :
  NA/NaN function evaluation
Warning in log(1 - gml) : NaNs produced
Warning in nlminb(lambda0, fct, gradient = Dfct, hessian = DDfct, X = gmat,  :
  NA/NaN function evaluation
Warning in log(1 - gml) : NaNs produced
Warning in nlminb(lambda0, fct, gradient = Dfct, hessian = DDfct, X = gmat,  :
  NA/NaN function evaluation
Warning in log(1 - gml) : NaNs produced
Warning in nlminb(lambda0, fct, gradient = Dfct, hessian = DDfct, X = gmat,  :
  NA/NaN function evaluation
Warning in log(1 - gml) : NaNs produced
Warning in nlminb(lambda0, fct, gradient = Dfct, hessian = DDfct, X = gmat,  :
  NA/NaN function evaluation
Warning in log(1 - gml) : NaNs produced
Warning in nlminb(lambda0, fct, gradient = Dfct, hessian = DDfct, X = gmat,  :
  NA/NaN function evaluation
Warning in log(1 - gml) : NaNs produced
Warning in nlminb(lambda0, fct, gradient = Dfct, hessian = DDfct, X = gmat,  :
  NA/NaN function evaluation
Warning in log(1 - gml) : NaNs produced
Warning in nlminb(lambda0, fct, gradient = Dfct, hessian = DDfct, X = gmat,  :
  NA/NaN function evaluation
Warning in log(1 - gml) : NaNs produced
Warning in nlminb(lambda0, fct, gradient = Dfct, hessian = DDfct, X = gmat,  :
  NA/NaN function evaluation
Warning in log(1 - gml) : NaNs produced
Warning in nlminb(lambda0, fct, gradient = Dfct, hessian = DDfct, X = gmat,  :
  NA/NaN function evaluation
Warning in log(1 - gml) : NaNs produced
Warning in nlminb(lambda0, fct, gradient = Dfct, hessian = DDfct, X = gmat,  :
  NA/NaN function evaluation
Warning in log(1 - gml) : NaNs produced
Warning in nlminb(lambda0, fct, gradient = Dfct, hessian = DDfct, X = gmat,  :
  NA/NaN function evaluation
Warning in log(1 - gml) : NaNs produced
Warning in nlminb(lambda0, fct, gradient = Dfct, hessian = DDfct, X = gmat,  :
  NA/NaN function evaluation
Quitting from lines 1002-1046 (gelS4.Rnw) 
Error: processing vignette 'gelS4.Rnw' failed with diagnostics:
there is no package called 'texreg'
--- failed re-building 'gelS4.Rnw'

--- re-building 'gmmS4.Rnw' using knitr
Loading required package: sandwich
Quitting from lines 1656-1707 (gmmS4.Rnw) 
Error: processing vignette 'gmmS4.Rnw' failed with diagnostics:
there is no package called 'texreg'
--- failed re-building 'gmmS4.Rnw'

SUMMARY: processing the following files failed:
  'gelS4.Rnw' 'gmmS4.Rnw'

Error: Vignette re-building failed.
Execution halted