Error(s) in re-building vignettes:
  ...
--- re-building ‘equateIRT_tutorial.Rmd’ using rmarkdown
Loading required package: MASS
Loading required package: msm
Loading required package: polycor
Loading required package: statnet.common

Attaching package: 'statnet.common'

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

    order

Loading required package: network
network: Classes for Relational Data
Version 1.16.1 created on 2020-10-06.
copyright (c) 2005, Carter T. Butts, University of California-Irvine
                    Mark S. Handcock, University of California -- Los Angeles
                    David R. Hunter, Penn State University
                    Martina Morris, University of Washington
                    Skye Bender-deMoll, University of Washington
 For citation information, type citation("network").
 Type help("network-package") to get started.

sna: Tools for Social Network Analysis
Version 2.6 created on 2020-10-5.
copyright (c) 2005, Carter T. Butts, University of California-Irvine
 For citation information, type citation("sna").
 Type help(package="sna") to get started.

--- finished re-building ‘equateIRT_tutorial.Rmd’

--- re-building ‘equateIRT_paper.Rnw’ using Sweave
Warning: Argument mod1 is deprecated; please use mods and which instead.
Warning: Argument mod2 is deprecated; please use mods and which instead.
Loading required package: MASS
Loading required package: msm
Loading required package: polycor
Error: processing vignette 'equateIRT_paper.Rnw' failed with diagnostics:
Running ‘texi2dvi’ on ‘equateIRT_paper.tex’ failed.
LaTeX errors:
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.54 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.54 \begin{document}
                     
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.54 \begin{document}
                     
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.54 \begin{document}
                     
--- failed re-building 'equateIRT_paper.Rnw'

SUMMARY: processing the following file failed:
  ‘equateIRT_paper.Rnw’

Error: Vignette re-building failed.
Execution halted