Error(s) in re-building vignettes:
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--- re-building ‘introduction.Rmd’ using rmarkdown
Loading required package: carData
── Attaching packages ─────────────────────────────────────── tidyverse 1.3.0 ──
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✔ tibble  3.0.3     ✔ dplyr   1.0.2
✔ tidyr   1.1.2     ✔ stringr 1.4.0
✔ readr   1.3.1     ✔ forcats 0.5.0
── Conflicts ────────────────────────────────────────── tidyverse_conflicts() ──
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Loading required package: lattice
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New to ggformula?  Try the tutorials: 
	learnr::run_tutorial("introduction", package = "ggformula")
	learnr::run_tutorial("refining", package = "ggformula")
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The 'mosaic' package masks several functions from core packages in order to add 
additional features.  The original behavior of these functions should not be affected by this.

Note: If you use the Matrix package, be sure to load it BEFORE loading mosaic.

Have you tried the ggformula package for your plots?

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Quitting from lines 297-298 (introduction.Rmd) 
Error: processing vignette 'introduction.Rmd' failed with diagnostics:
Invalid formula specification.  Too many slots (3>2).
--- failed re-building ‘introduction.Rmd’

--- re-building ‘regression.Rmd’ using rmarkdown
Loading required package: carData
── Attaching packages ─────────────────────────────────────── tidyverse 1.3.0 ──
✔ ggplot2 3.3.2     ✔ purrr   0.3.4
✔ tibble  3.0.3     ✔ dplyr   1.0.2
✔ tidyr   1.1.2     ✔ stringr 1.4.0
✔ readr   1.3.1     ✔ forcats 0.5.0
── Conflicts ────────────────────────────────────────── tidyverse_conflicts() ──
✖ dplyr::filter() masks stats::filter()
✖ dplyr::lag()    masks stats::lag()
✖ dplyr::recode() masks car::recode()
✖ purrr::some()   masks car::some()
Loading required package: lattice
Loading required package: ggformula
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Attaching package: 'ggstance'

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

    GeomErrorbarh, geom_errorbarh


New to ggformula?  Try the tutorials: 
	learnr::run_tutorial("introduction", package = "ggformula")
	learnr::run_tutorial("refining", package = "ggformula")
Loading required package: mosaicData
Loading required package: Matrix

Attaching package: 'Matrix'

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

    expand, pack, unpack


The 'mosaic' package masks several functions from core packages in order to add 
additional features.  The original behavior of these functions should not be affected by this.

Note: If you use the Matrix package, be sure to load it BEFORE loading mosaic.

Have you tried the ggformula package for your plots?

Attaching package: 'mosaic'

The following object is masked from 'package:Matrix':

    mean

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

    count, do, tally

The following object is masked from 'package:purrr':

    cross

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    stat

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    deltaMethod, logit

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    IQR, binom.test, cor, cor.test, cov, fivenum, median, prop.test,
    quantile, sd, t.test, var

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

    max, mean, min, prod, range, sample, sum


Attaching package: 'huxtable'

The following object is masked from 'package:dplyr':

    add_rownames

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    theme_grey

Loading required package: emmeans
Loading required package: magrittr

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    as_label

Install package "strengejacke" from GitHub (`devtools::install_github("strengejacke/strengejacke")`) to load all sj-packages at once!

Attaching package: 'sjPlot'

The following object is masked from 'package:huxtable':

    font_size


Attaching package: 'sjmisc'

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

    to_character, to_factor, to_label, to_numeric

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    %nin%, center

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    add_columns, add_rows

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    is_empty

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    replace_na

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    add_case

Warning: Removed 4 rows containing non-finite values (stat_boxploth).
--- finished re-building ‘regression.Rmd’

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

Error: Vignette re-building failed.
Execution halted