Error(s) in re-building vignettes:
  ...
--- re-building ‘charitable.Rmd’ using rmarkdown
Failed with error:  'there is no package called 'AER''
Failed with error:  'there is no package called 'censReg''

Quitting from lines 86-91 [models] (charitable.Rmd)
Error: processing vignette 'charitable.Rmd' failed with diagnostics:
Package `broom` required for this function to work.
  Please install it by running `install.packages("broom")`.
--- failed re-building ‘charitable.Rmd’

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

Quitting from lines 330-336 [tripsres] (escount.Rmd)
Error: processing vignette 'escount.Rmd' failed with diagnostics:
Package `broom` required for this function to work.
  Please install it by running `install.packages("broom")`.
--- failed re-building ‘escount.Rmd’

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

Quitting from lines 236-240 [unnamed-chunk-3] (expreg.Rmd)
Error: processing vignette 'expreg.Rmd' failed with diagnostics:
Package `broom` required for this function to work.
  Please install it by running `install.packages("broom")`.
--- failed re-building ‘expreg.Rmd’

--- re-building ‘ndvuong.Rmd’ using rmarkdown
** Processing: /home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/micsr.Rcheck/vign_test/micsr/vignettes/ndvuong_files/figure-html/unnamed-chunk-2-1.png
288x288 pixels, 8 bits/pixel, 255 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 6666 bytes
Input file size = 7521 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 5668
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 5668
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5
                               
Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 5668

Output IDAT size = 5668 bytes (998 bytes decrease)
Output file size = 5746 bytes (1775 bytes = 23.60% decrease)

[WARNING] Citeproc: citation BHAT:95 not found
[WARNING] Citeproc: citation CROI:20 not found
[WARNING] Citeproc: citation KOPP:WEN:00 not found
[WARNING] Citeproc: citation LEON:MIGU:17 not found
[WARNING] Citeproc: citation WEN:KOPP:01 not found
--- finished re-building ‘ndvuong.Rmd’

SUMMARY: processing the following files failed:
  ‘charitable.Rmd’ ‘escount.Rmd’ ‘expreg.Rmd’

Error: Vignette re-building failed.
Execution halted