Error(s) in re-building vignettes:
  ...
--- re-building ‘Analysis-using-tm-vignette.Rmd’ using rmarkdown
Warning in dev.off(dv) : Killing locked device

Quitting from Analysis-using-tm-vignette.Rmd:22-142 [unnamed-chunk-1]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `grid.Call()`:
! could not open file '/tmp/Rtmp0zsjOi/file1d90ae334068b8_wordcloud.png'
---
Backtrace:
     x
  1. +-base::withVisible(knit_print(x, ...))
  2. +-knitr::knit_print(x, ...)
  3. +-knitr:::knit_print.default(x, ...)
  4. | \-knitr::normal_print(x)
  5. |   +-base::print(x)
  6. |   \-ggplot2 (local) `print.ggplot2::ggplot`(x)
  7. |     +-grid::grid.draw(gtable)
  8. |     \-grid:::grid.draw.gTree(gtable)
  9. |       \-grDevices::recordGraphics(drawGTree(x), list(x = x), getNamespace("grid"))
 10. +-grid:::drawGTree(x)
 11. | +-grid::grid.draw(x$children[[i]], recording = FALSE)
 12. | \-grid:::grid.draw.gTree(x$children[[i]], recording = FALSE)
 13. |   \-grDevices::recordGraphics(drawGTree(x), list(x = x), getNamespace("grid"))
 14. +-grid:::drawGTree(x)
 15. | +-grid::grid.draw(x$children[[i]], recording = FALSE)
 16. | \-grid:::grid.draw.gTree(x$children[[i]], recording = FALSE)
 17. |   \-grDevices::recordGraphics(drawGTree(x), list(x = x), getNamespace("grid"))
 18. +-grid:::drawGTree(x)
 19. | +-grid::grid.draw(x$children[[i]], recording = FALSE)
 20. | \-grid:::grid.draw.gTree(x$children[[i]], recording = FALSE)
 21. |   \-grDevices::recordGraphics(drawGTree(x), list(x = x), getNamespace("grid"))
 22. \-grid:::drawGTree(x)
 23.   +-grid::makeContent(x)
 24.   \-ggwordcloud:::makeContent.textwordcloudtree(x)
 25.     \-base::lapply(...)
 26.       \-ggwordcloud (local) FUN(X[[i]], ...)
 27.         \-ggwordcloud:::compute_mask(...)
 28.           \-grid::pushViewport(...)
 29.             \-base::lapply(vps, push.vp, recording)
 30.               +-grid (local) FUN(X[[i]], ...)
 31.               \-grid:::push.vp.viewport(X[[i]], ...)
 32.                 \-grid:::record(vp)
 33.                   \-grid:::grid.Call(C_getDLon)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'Analysis-using-tm-vignette.Rmd' failed with diagnostics:
could not open file '/tmp/Rtmp0zsjOi/file1d90ae334068b8_wordcloud.png'
--- failed re-building ‘Analysis-using-tm-vignette.Rmd’

--- re-building ‘View-PDFs-vignette.Rmd’ using rmarkdown
--- finished re-building ‘View-PDFs-vignette.Rmd’

SUMMARY: processing the following file failed:
  ‘Analysis-using-tm-vignette.Rmd’

Error: Vignette re-building failed.
Execution halted