Error in re-building vignettes:
  ...
Warning in plot.window(...) : "legend" is not a graphical parameter
Warning in plot.xy(xy, type, ...) :
  "legend" is not a graphical parameter
Warning in axis(side = side, at = at, labels = labels, ...) :
  "legend" is not a graphical parameter
Warning in axis(side = side, at = at, labels = labels, ...) :
  "legend" is not a graphical parameter
Warning in box(...) : "legend" is not a graphical parameter
Warning in title(...) : "legend" is not a graphical parameter
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  "legend" is not a graphical parameter
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  "legend" is not a graphical parameter
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  "legend" is not a graphical parameter
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  "legend" is not a graphical parameter
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  "legend" is not a graphical parameter
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  "legend" is not a graphical parameter
Warning in plot.window(...) : "legend" is not a graphical parameter
Warning in plot.xy(xy, type, ...) :
  "legend" is not a graphical parameter
Warning in axis(side = side, at = at, labels = labels, ...) :
  "legend" is not a graphical parameter
Warning in axis(side = side, at = at, labels = labels, ...) :
  "legend" is not a graphical parameter
Warning in box(...) : "legend" is not a graphical parameter
Warning in title(...) : "legend" is not a graphical parameter
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  "legend" is not a graphical parameter
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  "legend" is not a graphical parameter
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  "legend" is not a graphical parameter
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  "legend" is not a graphical parameter
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  "legend" is not a graphical parameter
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  "legend" is not a graphical parameter
Warning in plot.window(...) : "legend" is not a graphical parameter
Warning in plot.xy(xy, type, ...) :
  "legend" is not a graphical parameter
Warning in axis(side = side, at = at, labels = labels, ...) :
  "legend" is not a graphical parameter
Warning in axis(side = side, at = at, labels = labels, ...) :
  "legend" is not a graphical parameter
Warning in box(...) : "legend" is not a graphical parameter
Warning in title(...) : "legend" is not a graphical parameter
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  "legend" is not a graphical parameter
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  "legend" is not a graphical parameter
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  "legend" is not a graphical parameter
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  "legend" is not a graphical parameter
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  "legend" is not a graphical parameter
Warning in doTryCatch(return(expr), name, parentenv, handler) :
  "legend" is not a graphical parameter
! Package inputenc Error: Unicode character ̈ (U+308)
(inputenc)                not set up for use with LaTeX.

Error: processing vignette 'tmod.rmd' failed with diagnostics:
Failed to compile tmod.tex. See tmod.log for more info.
Execution halted