Error(s) in re-building vignettes:
  ...
--- re-building ‘colorSpec-guide.Rmd’ using rmarkdown
--- finished re-building ‘colorSpec-guide.Rmd’

--- re-building ‘phenolred.Rmd’ using rmarkdown
This is colorSpec.  Version: 1.0-1.  Author: Glenn Davis [aut, cre].  Built: R 3.7.0; ; 2019-09-08 13:06:13 UTC; unix

Attaching package: 'spacesRGB'

The following objects are masked from 'package:colorSpec':

    RGBfromXYZ, metadata, metadata<-

--- finished re-building ‘phenolred.Rmd’

--- re-building ‘photoncounting.Rmd’ using rmarkdown
This is colorSpec.  Version: 1.0-1.  Author: Glenn Davis [aut, cre].  Built: R 3.7.0; ; 2019-09-08 13:06:13 UTC; unix
--- finished re-building ‘photoncounting.Rmd’

--- re-building ‘blueflame.rnw’ using knitr
This is colorSpec.  Version: 1.0-1.  Author: Glenn Davis [aut, cre].  Built: R 3.7.0; ; 2019-09-08 13:06:13 UTC; unix

Attaching package: 'spacesRGB'

The following objects are masked from 'package:colorSpec':

    RGBfromXYZ, metadata, metadata<-

--- finished re-building ‘blueflame.rnw’

--- re-building ‘convexity.rnw’ using knitr
This is colorSpec.  Version: 1.0-1.  Author: Glenn Davis [aut, cre].  Built: R 3.7.0; ; 2019-09-08 13:06:13 UTC; unix
--- finished re-building ‘convexity.rnw’

--- re-building ‘emulation.rnw’ using knitr
This is colorSpec.  Version: 1.0-1.  Author: Glenn Davis [aut, cre].  Built: R 3.7.0; ; 2019-09-08 13:06:13 UTC; unix

Attaching package: 'spacesRGB'

The following objects are masked from 'package:colorSpec':

    RGBfromXYZ, metadata, metadata<-

19:37:28.958 WARN  colorSpec::product.colorSpec(). The returned matrix is ambiguous; because it depends on the splitting. Inspect the matrix carefully. 
19:37:28.987 WARN  colorSpec::product.colorSpec(). The returned matrix is ambiguous; because it depends on the splitting. Inspect the matrix carefully. 
--- finished re-building ‘emulation.rnw’

--- re-building ‘gallery.rnw’ using knitr
This is colorSpec.  Version: 1.0-1.  Author: Glenn Davis [aut, cre].  Built: R 3.7.0; ; 2019-09-08 13:06:13 UTC; unix

Attaching package: 'spacesRGB'

The following objects are masked from 'package:colorSpec':

    RGBfromXYZ, metadata, metadata<-

--- finished re-building ‘gallery.rnw’

--- re-building ‘inversion.rnw’ using knitr
This is colorSpec.  Version: 1.0-1.  Author: Glenn Davis [aut, cre].  Built: R 3.7.0; ; 2019-09-08 13:06:13 UTC; unix
Error: processing vignette 'inversion.rnw' failed with diagnostics:
Running ‘texi2dvi’ on ‘inversion.tex’ failed.
LaTeX errors:
! LaTeX Error: Unknown float option `H'.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! LaTeX Error: Unknown float option `H'.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! LaTeX Error: Unknown float option `H'.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! LaTeX Error: Unknown float option `H'.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! LaTeX Error: Unknown float option `H'.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! LaTeX Error: Unknown float option `H'.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! LaTeX Error: Unknown float option `H'.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! LaTeX Error: Unknown float option `H'.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! LaTeX Error: Unknown float option `H'.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! LaTeX Error: Unknown float option `H'.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! LaTeX Error: Unknown float option `H'.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! LaTeX Error: Unknown float option `H'.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! LaTeX Error: Unknown float option `H'.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
--- failed re-building ‘inversion.rnw’

--- re-building ‘lens-aging.rnw’ using knitr
This is colorSpec.  Version: 1.0-1.  Author: Glenn Davis [aut, cre].  Built: R 3.7.0; ; 2019-09-08 13:06:13 UTC; unix

Attaching package: 'spacesRGB'

The following objects are masked from 'package:colorSpec':

    RGBfromXYZ, metadata, metadata<-

--- finished re-building ‘lens-aging.rnw’

--- re-building ‘optimals.rnw’ using knitr
This is colorSpec.  Version: 1.0-1.  Author: Glenn Davis [aut, cre].  Built: R 3.7.0; ; 2019-09-08 13:06:13 UTC; unix
--- finished re-building ‘optimals.rnw’

SUMMARY: processing the following file failed:
  ‘inversion.rnw’

Error: Vignette re-building failed.
Execution halted