Error(s) in re-building vignettes:
Warning: elapsed-time limit of 30 minutes reached for sub-process
--- re-building ‘intro-to-maximum-likelihood.Rnw’ using Sweave
Loading required package: miscTools

Please cite the 'maxLik' package as:
Henningsen, Arne and Toomet, Ott (2011). maxLik: A package for maximum likelihood estimation in R. Computational Statistics 26(3), 443-458. DOI 10.1007/s00180-010-0217-1.

If you have questions, suggestions, or comments regarding the 'maxLik' package, please use a forum or 'tracker' at maxLik's R-Forge site:
https://r-forge.r-project.org/projects/maxlik/
--- re-building ‘stochastic-gradient-maxLik.Rnw’ using Sweave
Loading required package: miscTools

Please cite the 'maxLik' package as:
Henningsen, Arne and Toomet, Ott (2011). maxLik: A package for maximum likelihood estimation in R. Computational Statistics 26(3), 443-458. DOI 10.1007/s00180-010-0217-1.

If you have questions, suggestions, or comments regarding the 'maxLik' package, please use a forum or 'tracker' at maxLik's R-Forge site:
https://r-forge.r-project.org/projects/maxlik/
--- finished re-building ‘stochastic-gradient-maxLik.Rnw’

--- re-building ‘using-maxlik.Rnw’ using Sweave
Loading required package: miscTools

Please cite the 'maxLik' package as:
Henningsen, Arne and Toomet, Ott (2011). maxLik: A package for maximum likelihood estimation in R. Computational Statistics 26(3), 443-458. DOI 10.1007/s00180-010-0217-1.

If you have questions, suggestions, or comments regarding the 'maxLik' package, please use a forum or 'tracker' at maxLik's R-Forge site:
https://r-forge.r-project.org/projects/maxlik/
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in sqrt(diag(vc)) : NaNs produced
Warning in sqrt(diag(vc)) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in dnorm(x, mean = mu, sd = sigma, log = TRUE) : NaNs produced
Warning in sqrt(diag(vc)) : NaNs produced
Warning in sqrt(diag(vc)) : NaNs produced
Warning in sqrt(diag(vc)) : NaNs produced
Warning in sqrt(diag(vc)) : NaNs produced
--- finished re-building ‘using-maxlik.Rnw’

SUMMARY: processing the following file failed:
  ‘intro-to-maximum-likelihood.Rnw’

Error: Vignette re-building failed.
Execution halted