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

Quitting from lines 74-82 (partial_centrality.Rmd) 
Error: processing vignette 'partial_centrality.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed 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’

--- 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

Quitting from lines 70-89 (probabilistic_cent.Rmd) 
Error: processing vignette 'probabilistic_cent.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed 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

Quitting from lines 132-133 (use_case.Rmd) 
Error: processing vignette 'use_case.Rmd' failed with diagnostics:
VECTOR_ELT() can only be applied to a 'list', not a 'double'
--- failed re-building ‘use_case.Rmd’

SUMMARY: processing the following files failed:
  ‘partial_centrality.Rmd’ ‘probabilistic_cent.Rmd’ ‘use_case.Rmd’

Error: Vignette re-building failed.
Execution halted