Error in re-building vignettes:
  ...
Warning in `[.data.table`(ft, , `:=`(c("mc6_mthd_id", "flag", "fval", "fval_unit",  :
  with=FALSE ignored, it isn't needed when using :=. See ?':=' for examples.
Warning in `[.data.table`(ft, , `:=`(c("mc6_mthd_id", "flag", "fval", "fval_unit",  :
  with=FALSE ignored, it isn't needed when using :=. See ?':=' for examples.
Warning in `[.data.table`(ft, , `:=`(c("mc6_mthd_id", "flag", "fval", "fval_unit",  :
  with=FALSE ignored, it isn't needed when using :=. See ?':=' for examples.
Warning in `[.data.table`(ft, , `:=`(c("mc6_mthd_id", "flag", "fval", "fval_unit",  :
  with=FALSE ignored, it isn't needed when using :=. See ?':=' for examples.
Warning in `[.data.table`(ft, , `:=`(c("mc6_mthd_id", "flag", "fval", "fval_unit",  :
  with=FALSE ignored, it isn't needed when using :=. See ?':=' for examples.
Warning in `[.data.table`(ft, , `:=`(c("mc6_mthd_id", "flag", "fval", "fval_unit",  :
  with=FALSE ignored, it isn't needed when using :=. See ?':=' for examples.
Warning in `[.data.table`(ft, , `:=`(c("mc6_mthd_id", "flag", "fval", "fval_unit",  :
  with=FALSE ignored, it isn't needed when using :=. See ?':=' for examples.
Warning in `[.data.table`(ft, , `:=`(c("mc6_mthd_id", "flag", "fval", "fval_unit",  :
  with=FALSE ignored, it isn't needed when using :=. See ?':=' for examples.
Warning in `[.data.table`(ft, , `:=`(c("mc6_mthd_id", "flag", "fval", "fval_unit",  :
  with=FALSE ignored, it isn't needed when using :=. See ?':=' for examples.
Warning in `[.data.table`(ft, , `:=`(c("mc6_mthd_id", "flag", "fval", "fval_unit",  :
  with=FALSE ignored, it isn't needed when using :=. See ?':=' for examples.
Warning: Closing open result set, pending rows
Error in find_vignette_product(name, by = "texi2pdf", engine = engine) : 
  Failed to locate the 'texi2pdf' output file (by engine 'utils::Sweave') for vignette with name 'tcpl_Overview'. The following files exist in directory '.': 'tcpl_Overview-concordance.tex', 'tcpl_Overview-fitc1.pdf', 'tcpl_Overview-fitc2.pdf', 'tcpl_Overview-l1apid.pdf', 'tcpl_Overview-l4plt.pdf', 'tcpl_Overview-l5plt1.pdf', 'tcpl_Overview-l5plt2.pdf', 'tcpl_Overview-l6plt.pdf', 'tcpl_Overview-podplt.pdf', 'tcpl_Overview.Rnw', 'tcpl_Overview.tex'
Calls: buildVignettes -> find_vignette_product
Execution halted