Error in re-building vignettes:
  ...
Loading required package: lattice
Loading required package: grid
Loading required package: ggplot2
Package hyperSpec, version 0.99-20180627

To get started, try
   vignette ("hyperspec")
   package?hyperSpec 
   vignette (package = "hyperSpec")

If you use this package please cite it appropriately.
   citation("hyperSpec")
will give you the correct reference.

The project homepage is http://hyperspec.r-forge.r-project.org


start: 300 support points
Iteration 1: 146 support points
Iteration 2: 85 support points
Iteration 3: 44 support points
Iteration 4: 26 support points
Iteration 5: 12 support points
Iteration 6: 7 support points
Iteration 7: 2 support points
Warning in max(x@wavelength) :
  no non-missing arguments to max; returning -Inf
Warning in min(x@wavelength) :
  no non-missing arguments to min; returning Inf
Warning in max(x@wavelength) :
  no non-missing arguments to max; returning -Inf
Warning in min(x@wavelength) :
  no non-missing arguments to min; returning Inf
Iteration 8: 0 support points
spectrum      1:     2 support points, noise = 0.0,   8 iterations
Fitting with npts.min = 15

start: 300 support points
spectrum      1:    20 support points, noise = 0.0,   5 iterations
Fitting with npts.min = 15

start: 300 support points
spectrum      1:    26 support points, noise = 0.0,   5 iterations
Fitting with npts.min = 15

start: 300 support points
spectrum      1:    25 support points, noise = 0.0,   5 iterations
Fitting with npts.min = 5

start: 100 support points
spectrum      1:    95 support points, noise = 4.0,   3 iterations
Fitting with npts.min = 15

start: 300 support points
Iteration 1: 153 support points
Iteration 2: 93 support points
Iteration 3: 54 support points
Iteration 4: 38 support points
Iteration 5: 32 support points
Iteration 6: 29 support points
Iteration 7: 29 support points
spectrum      1:    29 support points, noise = 15.0,   7 iterations
Warning in system(paste(shQuote(texi2dvi), if (quiet) "--quiet" else "",  :
  running command '"D:\compiler\texmf\miktex\bin\texify.exe" --quiet --pdf "baseline.tex" --max-iterations=20 -I "D:/RCompile/recent/R-3.5.3/share/texmf/tex/latex" -I "D:/RCompile/recent/R-3.5.3/share/texmf/bibtex/bst"' had status 1
Error: running 'texi2dvi' on 'baseline.tex' failed

LaTeX errors:
baseline.bbl:9: Package inputenc Error: Keyboard character used is undefined
(inputenc)                in inputencoding `utf8'.

See the inputenc package documentation for explanation.
Type  H <return>  for immediate help
baseline.bbl:9: Package inputenc Error: Keyboard character used is undefined
(inputenc)                in inputencoding `utf8'.

See the inputenc package documentation for explanation.
Type  H <return>  for immediate help
Execution halted