Error(s) in re-building vignettes:
  ...
--- re-building ‘textplot-examples.Rnw’ using Sweave
Loading required package: ggplot2
Downloading udpipe model from https://raw.githubusercontent.com/jwijffels/udpipe.models.ud.2.4/master/inst/udpipe-ud-2.4-190531/english-ewt-ud-2.4-190531.udpipe to /home/hornik/tmp/R.check/r-patched-gcc/Work/PKGS/textplot.Rcheck/vign_test/textplot/vignettes/english-ewt-ud-2.4-190531.udpipe
Visit https://github.com/jwijffels/udpipe.models.ud.2.4 for model license details
trying URL ‘https://raw.githubusercontent.com/jwijffels/udpipe.models.ud.2.4/master/inst/udpipe-ud-2.4-190531/english-ewt-ud-2.4-190531.udpipe’
Content type 'application/octet-stream' length 16477964 bytes (15.7 MB)
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downloaded 15.7 MB

Downloading udpipe model from https://raw.githubusercontent.com/jwijffels/udpipe.models.ud.2.4/master/inst/udpipe-ud-2.4-190531/dutch-alpino-ud-2.4-190531.udpipe to /home/hornik/tmp/R.check/r-patched-gcc/Work/PKGS/textplot.Rcheck/vign_test/textplot/vignettes/dutch-alpino-ud-2.4-190531.udpipe
Visit https://github.com/jwijffels/udpipe.models.ud.2.4 for model license details
trying URL ‘https://raw.githubusercontent.com/jwijffels/udpipe.models.ud.2.4/master/inst/udpipe-ud-2.4-190531/dutch-alpino-ud-2.4-190531.udpipe’
Content type 'application/octet-stream' length 16963783 bytes (16.2 MB)
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downloaded 16.2 MB

Loading required package: BiocGenerics
Loading required package: parallel

Attaching package: ‘BiocGenerics’

The following objects are masked from ‘package:parallel’:

    clusterApply, clusterApplyLB, clusterCall, clusterEvalQ,
    clusterExport, clusterMap, parApply, parCapply, parLapply,
    parLapplyLB, parRapply, parSapply, parSapplyLB

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, 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, sort, table,
    tapply, union, unique, unsplit, which, which.max, which.min

Loading required package: grid

Error: processing vignette 'textplot-examples.Rnw' failed with diagnostics:
 chunk 15 
Error in library(qgraph) : there is no package called ‘qgraph’

--- failed re-building ‘textplot-examples.Rnw’

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

Error: Vignette re-building failed.
Execution halted