Error(s) in re-building vignettes:
  ...
--- re-building ‘tutorial01.Rnw’ using knitr
Error: processing vignette 'tutorial01.Rnw' failed with diagnostics:
Running 'texi2dvi' on 'tutorial01.tex' failed.
LaTeX errors:
! Undefined control sequence.
l.88 \hlkwd{library}\hldef
                          {(crone)}
? 
! Emergency stop.
! Emergency stop.
l.88 
     
End of file on the terminal!

!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘tutorial01.Rnw’

--- re-building ‘tutorial02.Rnw’ using knitr
Error: processing vignette 'tutorial02.Rnw' failed with diagnostics:
Running 'texi2dvi' on 'tutorial02.tex' failed.
LaTeX errors:
! Undefined control sequence.
l.79 \hlkwd{library}\hldef
                          {(crone)}
? 
! Emergency stop.
! Emergency stop.
l.79 
     
End of file on the terminal!

!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘tutorial02.Rnw’

--- re-building ‘tutorial03.Rnw’ using knitr
Error: processing vignette 'tutorial03.Rnw' failed with diagnostics:
Running 'texi2dvi' on 'tutorial03.tex' failed.
LaTeX errors:
! Undefined control sequence.
l.85 \hlkwd{library}\hldef
                          {(crone)}
? 
! Emergency stop.
! Emergency stop.
l.85 
     
End of file on the terminal!

!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘tutorial03.Rnw’

--- re-building ‘tutorial04.Rnw’ using knitr
Error: processing vignette 'tutorial04.Rnw' failed with diagnostics:
Running 'texi2dvi' on 'tutorial04.tex' failed.
LaTeX errors:
! Undefined control sequence.
l.86 \hlkwd{library}\hldef
                          {(crone)}
? 
! Emergency stop.
! Emergency stop.
l.86 
     
End of file on the terminal!

!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘tutorial04.Rnw’

--- re-building ‘tutorial05.Rnw’ using knitr
Error: processing vignette 'tutorial05.Rnw' failed with diagnostics:
Running 'texi2dvi' on 'tutorial05.tex' failed.
LaTeX errors:
! Undefined control sequence.
l.132 \hldef
            {sdata}\hlopt{$}\hldef{Z}
? 
! Emergency stop.
! Emergency stop.
l.132 
      
End of file on the terminal!

!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘tutorial05.Rnw’

SUMMARY: processing the following files failed:
  ‘tutorial01.Rnw’ ‘tutorial02.Rnw’ ‘tutorial03.Rnw’ ‘tutorial04.Rnw’
  ‘tutorial05.Rnw’

Error: Vignette re-building failed.
Execution halted