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### Running command:
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###   /Library/Frameworks/R.framework/Resources/bin/R CMD build --keep-empty-dirs --no-resave-data timeOmics
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* checking for file ‘timeOmics/DESCRIPTION’ ... OK
* preparing ‘timeOmics’:
* checking DESCRIPTION meta-information ... OK
* installing the package to build vignettes
* creating vignettes ... ERROR
--- re-building ‘vignette.Rmd’ using rmarkdown
Loading required package: mixOmics
Loading required package: MASS
Loading required package: lattice
Loading required package: ggplot2

Loaded mixOmics 6.21.0
Thank you for using mixOmics!
Tutorials: http://mixomics.org
Bookdown vignette: https://mixomicsteam.github.io/Bookdown
Questions, issues: Follow the prompts at http://mixomics.org/contact-us
Cite us:  citation('mixOmics')

── Attaching packages ─────────────────────────────────────── tidyverse 1.3.1 ──
✔ tibble  3.1.7     ✔ dplyr   1.0.9
✔ tidyr   1.2.0     ✔ stringr 1.4.0
✔ readr   2.1.2     ✔ forcats 0.5.1
✔ purrr   0.3.4     
── Conflicts ────────────────────────────────────────── tidyverse_conflicts() ──
✖ dplyr::filter() masks stats::filter()
✖ dplyr::lag()    masks stats::lag()
✖ purrr::map()    masks mixOmics::map()
✖ dplyr::select() masks MASS::select()
Warning: Removed 3 row(s) containing missing values (geom_path).
Warning: Removed 3 rows containing missing values (geom_point).
Quitting from lines 532-541 (vignette.Rmd) 
Error: processing vignette 'vignette.Rmd' failed with diagnostics:
length(class2) == 1L is not TRUE
--- failed re-building ‘vignette.Rmd’

SUMMARY: processing the following file failed:
  ‘vignette.Rmd’

Error: Vignette re-building failed.
Execution halted