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--- re-building ‘pavo-1-overview.Rmd’ using rmarkdown
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--- failed re-building ‘pavo-1-overview.Rmd’

--- re-building ‘pavo-2-importing_processing.Rmd’ using rmarkdown
Welcome to pavo 2! Take a look at the latest features (and update your bibliography) in our recent publication: Maia R., Gruson H., Endler J. A., White T. E. (2019) pavo 2: new tools for the spectral and spatial analysis of colour in R. Methods in Ecology and Evolution, 10, 1097-1107.
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--- failed re-building ‘pavo-2-importing_processing.Rmd’

--- re-building ‘pavo-3-analysing.Rmd’ using rmarkdown
Welcome to pavo 2! Take a look at the latest features (and update your bibliography) in our recent publication: Maia R., Gruson H., Endler J. A., White T. E. (2019) pavo 2: new tools for the spectral and spatial analysis of colour in R. Methods in Ecology and Evolution, 10, 1097-1107.
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Calculating noise-weighted Euclidean distances and noise-weighted luminance contrasts
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Warning: partial match of ‘achro’ to ‘achromatic’
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Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Calculating noise-weighted Euclidean distances
Warning: partial match of ‘achro’ to ‘achromatic’
Warning in hook_png(before, options, envir, "pngquant", function(x) { :
  cannot find pngquant; please install and put it in PATH
wavelengths found in column 1
processing options applied:
Scaling spectra to a maximum value of 1
wavelengths found in column 1
processing options applied:
Scaling spectra to a total area of 1
processing options applied:
Scaling spectra to a minimum value of zero
wavelengths found in column 1
Calculating noise-weighted Euclidean distances and noise-weighted luminance contrasts
Warning in hook_png(before, options, envir, "pngquant", function(x) { :
  cannot find pngquant; please install and put it in PATH
Warning in hook_png(before, options, envir, "pngquant", function(x) { :
  cannot find pngquant; please install and put it in PATH
Warning in hook_png(before, options, envir, "pngquant", function(x) { :
  cannot find pngquant; please install and put it in PATH
Warning in hook_png(before, options, envir, "pngquant", function(x) { :
  cannot find pngquant; please install and put it in PATH
Warning in hook_png(before, options, envir, "pngquant", function(x) { :
  cannot find pngquant; please install and put it in PATH
Warning in hook_png(before, options, envir, "pngquant", function(x) { :
  cannot find pngquant; please install and put it in PATH
Warning in hook_png(before, options, envir, "pngquant", function(x) { :
  cannot find pngquant; please install and put it in PATH
Warning in hook_png(before, options, envir, "pngquant", function(x) { :
  cannot find pngquant; please install and put it in PATH
Warning in hook_png(before, options, envir, "pngquant", function(x) { :
  cannot find pngquant; please install and put it in PATH
Warning in hook_png(before, options, envir, "pngquant", function(x) { :
  cannot find pngquant; please install and put it in PATH
Warning in hook_png(before, options, envir, "pngquant", function(x) { :
  cannot find pngquant; please install and put it in PATH
Warning in hook_png(before, options, envir, "pngquant", function(x) { :
  cannot find pngquant; please install and put it in PATH
Warning in hook_png(before, options, envir, "pngquant", function(x) { :
  cannot find pngquant; please install and put it in PATH
Warning in hook_png(before, options, envir, "pngquant", function(x) { :
  cannot find pngquant; please install and put it in PATH
Using single set of coldists for all images.
Using single set of hsl values for all images.
Warning in hook_png(before, options, envir, "pngquant", function(x) { :
  cannot find pngquant; please install and put it in PATH
wavelengths found in column 1
Calculating noise-weighted Euclidean distances
Warning in hook_png(before, options, envir, "pngquant", function(x) { :
  cannot find pngquant; please install and put it in PATH
One or more image matrices are not of class 'rimg'; attempting to coerce.
pandoc-citeproc: Error in $: Incompatible API versions: encoded with [1,20] but attempted to decode with [1,17,5,4].
CallStack (from HasCallStack):
  error, called at ./Text/Pandoc/JSON.hs:111:48 in pandoc-types-1.17.5.4-5tHZ3B61A58JaKOMxwGQR4:Text.Pandoc.JSON
Error running filter /usr/bin/pandoc-citeproc:
Filter returned error status 1
Error: processing vignette 'pavo-3-analysing.Rmd' failed with diagnostics:
pandoc document conversion failed with error 83
--- failed re-building ‘pavo-3-analysing.Rmd’

--- re-building ‘pavo-4-spectraldesc.Rmd’ using rmarkdown
pandoc-citeproc: Error in $: Incompatible API versions: encoded with [1,20] but attempted to decode with [1,17,5,4].
CallStack (from HasCallStack):
  error, called at ./Text/Pandoc/JSON.hs:111:48 in pandoc-types-1.17.5.4-5tHZ3B61A58JaKOMxwGQR4:Text.Pandoc.JSON
Error running filter /usr/bin/pandoc-citeproc:
Filter returned error status 1
Error: processing vignette 'pavo-4-spectraldesc.Rmd' failed with diagnostics:
pandoc document conversion failed with error 83
--- failed re-building ‘pavo-4-spectraldesc.Rmd’

SUMMARY: processing the following files failed:
  ‘pavo-1-overview.Rmd’ ‘pavo-2-importing_processing.Rmd’
  ‘pavo-3-analysing.Rmd’ ‘pavo-4-spectraldesc.Rmd’

Error: Vignette re-building failed.
Execution halted