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

Quitting from intro_sjlabelled.Rmd:216-225 [unnamed-chunk-21]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `as.data.frame.integer()`:
! row names contain missing values
---
Backtrace:
     ▆
  1. ├─... %>% frq()
  2. └─sjmisc::frq(.)
  3.   └─sjmisc:::frq_helper(...)
  4.     └─base::data.frame(table(x, useNA = "always"))
  5.       ├─base::as.data.frame(x[[i]], optional = TRUE)
  6.       └─base::as.data.frame.table(x[[i]], optional = TRUE)
  7.         ├─base::eval(ex)
  8.         │ └─base::eval(ex)
  9.         └─base::data.frame(...)
 10.           ├─base::as.data.frame(x[[i]], optional = TRUE)
 11.           └─base::as.data.frame.integer(x[[i]], optional = TRUE)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'intro_sjlabelled.Rmd' failed with diagnostics:
row names contain missing values
--- failed re-building ‘intro_sjlabelled.Rmd’

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

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

Quitting from quasiquotation.Rmd:31-57 [unnamed-chunk-2]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `as.data.frame.integer()`:
! row names contain missing values
---
Backtrace:
     ▆
  1. └─sjmisc::frq(test, dummy1)
  2.   └─sjmisc:::frq_helper(...)
  3.     └─base::data.frame(table(x, useNA = "always"))
  4.       ├─base::as.data.frame(x[[i]], optional = TRUE)
  5.       └─base::as.data.frame.table(x[[i]], optional = TRUE)
  6.         ├─base::eval(ex)
  7.         │ └─base::eval(ex)
  8.         └─base::data.frame(...)
  9.           ├─base::as.data.frame(x[[i]], optional = TRUE)
 10.           └─base::as.data.frame.integer(x[[i]], optional = TRUE)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'quasiquotation.Rmd' failed with diagnostics:
row names contain missing values
--- failed re-building ‘quasiquotation.Rmd’

SUMMARY: processing the following files failed:
  ‘intro_sjlabelled.Rmd’ ‘quasiquotation.Rmd’

Error: Vignette re-building failed.
Execution halted