Error(s) in re-building vignettes:
  ...
--- re-building ‘Tohoku.Rmd’ using rmarkdown
[WARNING] Deprecated: --highlight-style. Use --syntax-highlighting instead.
--- finished re-building ‘Tohoku.Rmd’

--- re-building ‘ResponseModels-knitr.Rnw’ using knitr

Quitting from ResponseModels-knitr.Rnw:186-192 [KITRESP]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `plot.wrsp()`:
! unimplemented complex function
---
Backtrace:
    x
 1. +-base::plot(wrsp)
 2. \-kitagawa:::plot.wrsp(wrsp)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'ResponseModels-knitr.Rnw' failed with diagnostics:
unimplemented complex function
--- failed re-building ‘ResponseModels-knitr.Rnw’

make[1]: Entering directory '/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/kitagawa.Rcheck/vign_test/kitagawa/vignettes'
/home/hornik/tmp/R.check/r-devel-gcc/Work/build/bin/Rscript -e "if (getRversion() < '3.0.0') knitr::knit2pdf('ResponseModels-knitr.Rnw') else tools::texi2pdf('ResponseModels-knitr.tex')"
Error in texi2dvi(file = file, pdf = TRUE, clean = clean, quiet = quiet,  : 
  Running 'texi2dvi' on 'ResponseModels-knitr.tex' failed.
LaTeX errors:
! LaTeX Error: Environment knitrout undefined.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! Emergency stop.
 ...                                              
                                                  
l.116 \begin{knitrout}
                      \small
!  ==> Fatal error occurred, no output PDF file produced!
Calls: <Anonymous> -> texi2dvi
Execution halted
make[1]: *** [Makefile:15: ResponseModels-knitr.pdf] Error 1
make[1]: Leaving directory '/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/kitagawa.Rcheck/vign_test/kitagawa/vignettes'
Error in tools::buildVignettes(dir = "/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/kitagawa.Rcheck/vign_test/kitagawa",  : 
  running 'make' failed
Execution halted