Error(s) in re-building vignettes:
--- re-building 'mtram.Rnw' using knitr
Loading required package: mlt
Loading required package: basefun
Loading required package: variables
Loading required package: survival
Loading required package: tram
Loading required package: lme4
Loading required package: Matrix
Loading required package: gridExtra
Loading required package: lattice
Loading required package: latticeExtra
Loading required package: mvtnorm
Loading required package: ordinalCont
Loading required package: boot

Attaching package: 'boot'

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

    melanoma

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

    aml

Loading required package: splines
Loading required package: Deriv
Warning in R.factor(object = data[[response]]) :
  response is unordered factor;
             results may depend on order of levels
Warning in R.factor(object = data[[response]]) :
  response is unordered factor;
             results may depend on order of levels
Loading required package: bdsmatrix

Attaching package: 'bdsmatrix'

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

    backsolve

Loading required package: MASS

Attaching package: 'TH.data'

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

    geyser

Warning in system(paste(shQuote(texi2dvi), if (quiet) "--quiet" else "",  :
  running command '"C:\PROGRA~1\MiKTeX\miktex\bin\x64\texify.exe" --quiet --pdf "mtram.tex" --max-iterations=20 -I "C:/r_packages/rinst/share/texmf/tex/latex" -I "C:/r_packages/rinst/share/texmf/bibtex/bst"' had status 1
Error: processing vignette 'mtram.Rnw' failed with diagnostics:
running 'texi2dvi' on 'mtram.tex' failed

LaTeX errors:
:515: Package xcolor Error: Undefined color `Blue'.

See the xcolor package documentation for explanation.
Type  H <return>  for immediate help.
 ...                                              
:519: Package xcolor Error: Undefined color `Red'.

See the xcolor package documentation for explanation.
Type  H <return>  for immediate help.
 ...                                              
:1998: Package xcolor Error: Undefined color `Red'.

See the xcolor package documentation for explanation.
Type  H <return>  for immediate help.
 ...                                              

--- failed re-building 'mtram.Rnw'

--- re-building 'tram.Rnw' using knitr
Loading required package: mlbench
Loading required package: multcomp
Loading required package: ordinal

Attaching package: 'ordinal'

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

    VarCorr, ranef

The following objects are masked from 'package:lme4':

    VarCorr, ranef

Loading required package: quantreg
Loading required package: SparseM

Attaching package: 'SparseM'

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

    backsolve

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

    backsolve


Attaching package: 'quantreg'

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

    untangle.specials

Loading required package: trtf
Loading required package: partykit
Loading required package: grid

Attaching package: 'grid'

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

    unit

Loading required package: libcoin
Loading required package: ATR
Warning in model.matrix.box_bases(object = list(iresponse = function (data,  :
  use scale = TRUE in as.basis.formula with sumcontr = TRUE
Warning in model.matrix.box_bases(object = list(iresponse = function (data,  :
  use scale = TRUE in as.basis.formula with sumcontr = TRUE
Warning in model.matrix.box_bases(object = list(iresponse = function (data,  :
  use scale = TRUE in as.basis.formula with sumcontr = TRUE
Warning in model.matrix.box_bases(object = list(iresponse = function (data,  :
  use scale = TRUE in as.basis.formula with sumcontr = TRUE
Warning in model.matrix.box_bases(object = list(iresponse = function (data,  :
  use scale = TRUE in as.basis.formula with sumcontr = TRUE
Warning in model.matrix.box_bases(object = list(iresponse = function (data,  :
  use scale = TRUE in as.basis.formula with sumcontr = TRUE
Warning in model.matrix.box_bases(object = list(iresponse = function (data,  :
  use scale = TRUE in as.basis.formula with sumcontr = TRUE

warning: solve(): system is singular; attempting approx solution
Warning in rq.fit.br(x, y, tau = tau, ...) : Solution may be nonunique
Warning in model.matrix.box_bases(object = list(iresponse = function (data,  :
  use scale = TRUE in as.basis.formula with sumcontr = TRUE
Warning in model.matrix.box_bases(object = list(iresponse = function (data,  :
  use scale = TRUE in as.basis.formula with sumcontr = TRUE
Warning in model.matrix.box_bases(object = list(iresponse = function (data,  :
  use scale = TRUE in as.basis.formula with sumcontr = TRUE
Warning in model.matrix.box_bases(object = list(iresponse = function (data,  :
  use scale = TRUE in as.basis.formula with sumcontr = TRUE
Warning in model.matrix.box_bases(object = list(iresponse = function (data,  :
  use scale = TRUE in as.basis.formula with sumcontr = TRUE

warning: solve(): system is singular (rcond: 4.90156e-18); attempting approx solution
--- finished re-building 'tram.Rnw'

SUMMARY: processing the following file failed:
  'mtram.Rnw'

Error: Vignette re-building failed.
Execution halted