Error(s) in re-building vignettes:
  ...
--- re-building ‘aesthetics.Rmd’ using rmarkdown

Quitting from lines 40-53 [unnamed-chunk-2] (aesthetics.Rmd)
Error: processing vignette 'aesthetics.Rmd' failed with diagnostics:
Problem while converting geom to grob.
ℹ Error occurred in the 1st layer.
Caused by error in `txt$shape[, shape_vars]`:
! Can't subset columns that don't exist.
✖ Column `x_midpoint` doesn't exist.
--- failed re-building ‘aesthetics.Rmd’

--- re-building ‘curved_polar.Rmd’ using rmarkdown
** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/geomtextpath.Rcheck/vign_test/geomtextpath/vignettes/curved_polar_files/figure-html/weather_plot_coordpolar-1.png
687x576 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 75097 bytes
Input file size = 75301 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 57738
  zc = 9  zm = 8  zs = 1  f = 0
  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 = 0  f = 0		IDAT size = 57738

Output IDAT size = 57738 bytes (17359 bytes decrease)
Output file size = 57834 bytes (17467 bytes = 23.20% decrease)


Quitting from lines 60-61 [weather_plot_coordcurvedpolar] (curved_polar.Rmd)
Error: processing vignette 'curved_polar.Rmd' failed with diagnostics:
Can't subset columns that don't exist.
✖ Column `x_midpoint` doesn't exist.
--- failed re-building ‘curved_polar.Rmd’

--- re-building ‘geomtextpath.Rmd’ using rmarkdown
** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/geomtextpath.Rcheck/vign_test/geomtextpath/vignettes/geomtextpath_files/figure-html/path_and_text_spiral-1.png
288x288 pixels, 3x8 bits/pixel, RGB
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 16688 bytes
Input file size = 16808 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 6404
  zc = 9  zm = 8  zs = 1  f = 0
  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 = 0  f = 0		IDAT size = 6404

Output IDAT size = 6404 bytes (10284 bytes decrease)
Output file size = 6496 bytes (10312 bytes = 61.35% decrease)

** Processing: /home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/geomtextpath.Rcheck/vign_test/geomtextpath/vignettes/geomtextpath_files/figure-html/path_and_text_spiral-2.png
288x288 pixels, 3x8 bits/pixel, RGB
Reducing image to 8 bits/pixel, grayscale
Input IDAT size = 8582 bytes
Input file size = 8690 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 3116
  zc = 9  zm = 8  zs = 1  f = 0
  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 = 0  f = 0		IDAT size = 3116

Output IDAT size = 3116 bytes (5466 bytes decrease)
Output file size = 3208 bytes (5482 bytes = 63.08% decrease)


Quitting from lines 50-53 [textpath_spiral] (geomtextpath.Rmd)
Error: processing vignette 'geomtextpath.Rmd' failed with diagnostics:
Problem while converting geom to grob.
ℹ Error occurred in the 1st layer.
Caused by error in `txt$shape[, shape_vars]`:
! Can't subset columns that don't exist.
✖ Column `x_midpoint` doesn't exist.
--- failed re-building ‘geomtextpath.Rmd’

SUMMARY: processing the following files failed:
  ‘aesthetics.Rmd’ ‘curved_polar.Rmd’ ‘geomtextpath.Rmd’

Error: Vignette re-building failed.
Execution halted