Error(s) in re-building vignettes:
--- re-building ‘textplot-examples.Rnw’ using knitr

Attaching package: 'igraph'

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

    decompose, spectrum

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

    union

trying URL 'https://raw.githubusercontent.com/jwijffels/udpipe.models.ud.2.5/master/inst/udpipe-ud-2.5-191206/english-ewt-ud-2.5-191206.udpipe'
Content type 'application/octet-stream' length 16309608 bytes (15.6 MB)
==================================================
downloaded 15.6 MB

trying URL 'https://raw.githubusercontent.com/jwijffels/udpipe.models.ud.2.5/master/inst/udpipe-ud-2.5-191206/dutch-alpino-ud-2.5-191206.udpipe'
Content type 'application/octet-stream' length 17047727 bytes (16.3 MB)
==================================================
downloaded 16.3 MB


Attaching package: 'BiocGenerics'

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

    normalize, path, union

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

    IQR, mad, sd, var, xtabs

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

    Filter, Find, Map, Position, Reduce, anyDuplicated, aperm, append,
    as.data.frame, basename, cbind, colnames, dirname, do.call,
    duplicated, eval, evalq, get, grep, grepl, intersect, is.unsorted,
    lapply, mapply, match, mget, order, paste, pmax, pmax.int, pmin,
    pmin.int, rank, rbind, rownames, sapply, setdiff, table, tapply,
    union, unique, unsplit, which.max, which.min


Attaching package: 'graph'

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

    degree, edges, intersection


Attaching package: 'qgraph'

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

    qgraph

Error: processing vignette 'textplot-examples.Rnw' failed with diagnostics:
Running 'texi2dvi' on 'textplot-examples.tex' failed.
LaTeX errors:
! Undefined control sequence.
l.99 \hlkwd{library}\hldef
                          {(textplot)}
? 
! Emergency stop.
! Emergency stop.
l.99 
     
End of file on the terminal!

!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘textplot-examples.Rnw’

SUMMARY: processing the following file failed:
  ‘textplot-examples.Rnw’

Error: Vignette re-building failed.
Execution halted