Error(s) in re-building vignettes:
--- re-building 'benchmarks.Rmd' using rmarkdown
--- finished re-building 'benchmarks.Rmd'

--- re-building 'centrality_indices.Rmd' using rmarkdown

Attaching package: 'igraph'

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

    decompose, spectrum

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

    union

--- finished re-building 'centrality_indices.Rmd'

--- re-building 'indirect_relations.Rmd' using rmarkdown

Attaching package: 'igraph'

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

    decompose, spectrum

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

    union

--- finished re-building 'indirect_relations.Rmd'

--- re-building 'neighborhood_inclusion.Rmd' using rmarkdown

Attaching package: 'igraph'

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

    decompose, spectrum

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

    union

--- finished re-building 'neighborhood_inclusion.Rmd'

--- re-building 'partial_centrality.Rmd' using rmarkdown

Attaching package: 'igraph'

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

    decompose, spectrum

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

    union

--- finished re-building 'partial_centrality.Rmd'

--- re-building 'positional_dominance.Rmd' using rmarkdown

Attaching package: 'igraph'

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

    decompose, spectrum

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

    union

--- finished re-building 'positional_dominance.Rmd'

+-+positional_dominance.html
--- re-building 'probabilistic_cent.Rmd' using rmarkdown

Attaching package: 'igraph'

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

    decompose, spectrum

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

    union

--- finished re-building 'probabilistic_cent.Rmd'

--- re-building 'threshold_graph.Rmd' using rmarkdown

Attaching package: 'igraph'

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

    decompose, spectrum

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

    union

--- finished re-building 'threshold_graph.Rmd'

--- re-building 'use_case.Rmd' using rmarkdown

Attaching package: 'igraph'

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

    decompose, spectrum

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

    union

--- finished re-building 'use_case.Rmd'

SUMMARY: processing the following file failed:
  'positional_dominance.Rmd'

Error: Vignette re-building failed.
Execution halted