Error(s) in re-building vignettes:
  ...
--- re-building ‘mfbvar_jss.Rnw’ using knitr
── Attaching packages ───────────────────────────── tidyverse 1.2.1 ──
✔ ggplot2 3.2.1     ✔ purrr   0.3.2
✔ tibble  2.1.3     ✔ dplyr   0.8.3
✔ tidyr   1.0.0     ✔ stringr 1.4.0
✔ readr   1.3.1     ✔ forcats 0.4.0
── Conflicts ──────────────────────────────── tidyverse_conflicts() ──
✖ dplyr::filter() masks stats::filter()
✖ dplyr::lag()    masks stats::lag()
Picking joint bandwidth of 0.502
Error: processing vignette 'mfbvar_jss.Rnw' failed with diagnostics:
Running 'texi2dvi' on 'mfbvar_jss.tex' failed.
LaTeX errors:
! Paragraph ended before \@tempa was complete.
<to be read again> 
                   \par 
l.670 
      
! LaTeX Error: Not in outer par mode.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
! Argument of \@tempa has an extra }.
<inserted text> 
                \par 
l.779 ...idth=0.49\linewidth]{figure/ss_plots-1} }
                                                  \subfloat[Hierarchical ste...
! Paragraph ended before \@tempa was complete.
<to be read again> 
                   \par 
l.779 ...idth=0.49\linewidth]{figure/ss_plots-1} }
                                                  \subfloat[Hierarchical ste...
! Extra }, or forgotten \endgroup.
<recently read> }
                 
l.779 ...idth=0.49\linewidth]{figure/ss_plots-1} }
                                                  \subfloat[Hierarchical ste...
! Argument of \@tempa has an extra }.
<inserted text> 
                \par 
l.779 ...idth=0.49\linewidth]{figure/ss_plots-2} }
                                                  \caption[Forecasts and pos...
! Paragraph ended before \@tempa was complete.
<to be read again> 
                   \par 
l.779 ...idth=0.49\linewidth]{figure/ss_plots-2} }
                                                  \caption[Forecasts and pos...
! Extra }, or forgotten \endgroup.
<recently read> }
                 
l.779 ...idth=0.49\linewidth]{figure/ss_plots-2} }
                                                  \caption[Forecasts and pos...
! TeX capacity exceeded, sorry [input stack size=5000].
<argument> \c@figure 
                     
l.779 ...idth=0.49\linewidth]{figure/ss_plots-2} }
                                                  \caption[Forecasts and pos...
!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘mfbvar_jss.Rnw’

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

Error: Vignette re-building failed.
Execution halted