Error(s) in re-building vignettes:
--- re-building 'an_introduction_to_markovchain_package.Rmd' using rmarkdown
Warning: Package natbib Warning: Citation `bremaud1999discrete' on page 3 undefined on i
Warning: nput line 249.
Warning: Package natbib Warning: Citation `dobrow2016introduction' on page 3 undefined o
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Warning: Package natbib Warning: Citation `kullback1962tests' on page 17 undefined on in
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--- finished re-building 'an_introduction_to_markovchain_package.Rmd'

--- re-building 'gsoc_2017_additions.Rmd' using rmarkdown
! Sorry, but D:\compiler\texmf\miktex\bin\pdflatex.exe did not succeed.

! The log file hopefully contains the information to get MiKTeX going again:

!   C:/Users/CRAN/AppData/Local/MiKTeX/2.9/miktex/log/pdflatex.log

! You may want to visit the MiKTeX project page, if you need help.

Error: processing vignette 'gsoc_2017_additions.Rmd' failed with diagnostics:
LaTeX failed to compile d:/RCompile/CRANpkg/local/4.1/markovchain.Rcheck/vign_test/markovchain/vignettes/gsoc_2017_additions.tex. See https://yihui.org/tinytex/r/#debugging for debugging tips. See gsoc_2017_additions.log for more info.
--- failed re-building 'gsoc_2017_additions.Rmd'

--- re-building 'higher_order_markov_chains.Rmd' using rmarkdown
--- finished re-building 'higher_order_markov_chains.Rmd'

SUMMARY: processing the following file failed:
  'gsoc_2017_additions.Rmd'

Error: Vignette re-building failed.
Execution halted