--- re-building ‘ReconstructRoadHistory.Rmd’ using rmarkdown

processing vignette 'grade-penalty.Rmd' failed with diagnostics:

Vignette re-building failed.

Build process failed

Process completed with exit code 1.

The vignette title specified in \VignetteIndexEntry{} is different from the title in the YAML metadata. The former is "ReconstructRoadHistory", and the latter is "Reconstruct road development history". If that is intentional, you may set options(rmarkdown.html_vignette.check_title = FALSE) to suppress this check.