Error(s) in re-building vignettes:
  ...
--- re-building ‘FLAM_canada.Rnw’ using knitr
Loading required package: mboost
Loading required package: parallel
Loading required package: stabs
This is FDboost 1.0-0. 
Loading required package: splines
Loading required package: Matrix
Loading required package: fds
Loading required package: rainbow
Loading required package: MASS
Loading required package: pcaPP
Loading required package: RCurl
Loading required package: deSolve

Attaching package: 'fda'

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

    matplot

Loading required package: spam
Loading required package: dotCall64
Loading required package: grid
Spam version 2.7-0 (2021-06-25) is loaded.
Type 'help( Spam)' or 'demo( spam)' for a short introduction 
and overview of this package.
Help for individual functions is also obtained by adding the
suffix '.spam' to the function name, e.g. 'help( chol.spam)'.

Attaching package: 'spam'

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

    det

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

    backsolve, forwardsolve

Loading required package: viridis
Loading required package: viridisLite

Try help(fields) to get started.
Loading required package: maps

Attaching package: 'maps'

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

    unemp

Loading required package: mapdata
Error: processing vignette ‘FLAM_canada.Rnw’ failed with diagnostics:
Running ‘texi2dvi’ on ‘FLAM_canada.tex’ failed.
LaTeX errors:
! You can't use `macro parameter character #' in horizontal mode.
l.127 ...data("CanadianWeather", package = "fda")#
                                                  ## use data on a monthly b...

? 
! Emergency stop.
l.127 ...data("CanadianWeather", package = "fda")#
                                                  ## use data on a monthly b...
End of file on the terminal!

!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘FLAM_canada.Rnw’

--- re-building ‘FLAM_fuel.Rnw’ using knitr
UVVIS is not centered per column, inducing a non-centered effect.
NIR is not centered per column, inducing a non-centered effect.
Error: processing vignette ‘FLAM_fuel.Rnw’ failed with diagnostics:
Running ‘texi2dvi’ on ‘FLAM_fuel.tex’ failed.
LaTeX errors:
! You can't use `macro parameter character #' in math mode.
l.134 #
        # normalize the wavelength to 0-1# fuel$nir.lambda0 <- (fuel$nir.lam...

? 
! Emergency stop.
l.134 #
        # normalize the wavelength to 0-1# fuel$nir.lambda0 <- (fuel$nir.lam...
End of file on the terminal!

!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘FLAM_fuel.Rnw’

--- re-building ‘FLAM_viscosity.Rnw’ using knitr
Use a smooth offset.
Warning in mboost_fit(bl, response = response, weights = weights, offset = offset,  :
  response contains missing values;
 weights of corresponding observations are set to zero and thus these observations are not used for fitting
Error: processing vignette ‘FLAM_viscosity.Rnw’ failed with diagnostics:
Running ‘texi2dvi’ on ‘FLAM_viscosity.tex’ failed.
LaTeX errors:
! You can't use `macro parameter character #' in horizontal mode.
l.125 #
        load("viscosity.RData")data(viscosity)str(viscosity)List of 7
? 
! Emergency stop.
! Emergency stop.
l.125 #
        load("viscosity.RData")data(viscosity)str(viscosity)List of 7
End of file on the terminal!

!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘FLAM_viscosity.Rnw’

SUMMARY: processing the following files failed:
  ‘FLAM_canada.Rnw’ ‘FLAM_fuel.Rnw’ ‘FLAM_viscosity.Rnw’

Error: Vignette re-building failed.
Execution halted