Error(s) in re-building vignettes:
  ...
--- re-building ‘TheMakingOf.Rmd’ using rmarkdown
Quitting from lines 155-168 (TheMakingOf.Rmd) 
Error: processing vignette 'TheMakingOf.Rmd' failed with diagnostics:
attempt to use zero-length variable name
--- failed re-building ‘TheMakingOf.Rmd’

--- re-building ‘Vignette1.Rmd’ using rmarkdown
--- finished re-building ‘Vignette1.Rmd’

--- re-building ‘Vignette2.Rmd’ using rmarkdown
--- finished re-building ‘Vignette2.Rmd’

--- re-building ‘Vignette3.Rmd’ using rmarkdown
--- finished re-building ‘Vignette3.Rmd’

--- re-building ‘Vignette4.Rmd’ using rmarkdown

Attaching package: 'psych'

The following objects are masked from 'package:ggplot2':

    %+%, alpha

--- finished re-building ‘Vignette4.Rmd’

--- re-building ‘Vignette5.Rmd’ using rmarkdown
--- finished re-building ‘Vignette5.Rmd’

--- re-building ‘Vignette6.Rmd’ using rmarkdown
--- finished re-building ‘Vignette6.Rmd’

--- re-building ‘Vignette7.Rmd’ using rmarkdown
--- finished re-building ‘Vignette7.Rmd’

--- re-building ‘Vignette8.Rmd’ using rmarkdown
--- finished re-building ‘Vignette8.Rmd’

--- re-building ‘Vignette9.Rmd’ using rmarkdown
superb::FYI: Running initializer init.d1
--- finished re-building ‘Vignette9.Rmd’

--- re-building ‘VignetteA.Rmd’ using rmarkdown
Quitting from lines 209-219 (VignetteA.Rmd) 
Error: processing vignette 'VignetteA.Rmd' failed with diagnostics:
attempt to use zero-length variable name
--- failed re-building ‘VignetteA.Rmd’

--- re-building ‘VignetteB.Rmd’ using rmarkdown
superb::FYI: The variables will be plotted in that order: Nletters, Nuppercase (use factorOrder to change).
superb::FYI: Here is how the within-subject variables are understood:
 Nletters Nuppercase variable
        1          1   DV.1.1
        2          1   DV.2.1
        3          1   DV.3.1
        4          1   DV.4.1
        1          2   DV.1.2
        2          2   DV.2.2
        3          2   DV.3.2
        4          2   DV.4.2
        1          3   DV.1.3
        2          3   DV.2.3
        3          3   DV.3.3
        4          3   DV.4.3
        1          4   DV.1.4
        2          4   DV.2.4
        3          4   DV.3.4
        4          4   DV.4.4
superb::FYI: The variables will be plotted in that order: Nletters, Nuppercase (use factorOrder to change).
superb::FYI: Here is how the within-subject variables are understood:
 Nletters Nuppercase variable
        1          1   DV.1.1
        2          1   DV.2.1
        3          1   DV.3.1
        4          1   DV.4.1
        2          2   DV.2.2
        3          2   DV.3.2
        4          2   DV.4.2
        3          3   DV.3.3
        4          3   DV.4.3
        4          4   DV.4.4
--- finished re-building ‘VignetteB.Rmd’

SUMMARY: processing the following files failed:
  ‘TheMakingOf.Rmd’ ‘VignetteA.Rmd’

Error: Vignette re-building failed.
Execution halted