--- re-building ‘building-reproducible-development-environments-with-rix.Rmd’ using rmarkdown

processing vignette 'building-reproducible-development-environments-with-rix.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 "installing-old-packages-from-the-cran-archives", and the latter is "Installing old packages from the CRAN archives". If that is intentional, you may set options(rmarkdown.html_vignette.check_title = FALSE) to suppress this check.

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

The vignette title specified in \VignetteIndexEntry{} is different from the title in the YAML metadata. The former is "reproducible-analytical-pipelines-with-nix", and the latter is "Reproducible Analytical Pipelines with Nix". If that is intentional, you may set options(rmarkdown.html_vignette.check_title = FALSE) to suppress this check.

The vignette title specified in \VignetteIndexEntry{} is different from the title in the YAML metadata. The former is "save-the-nix-package-versions-data", and the latter is "Save the Nix Package Versions data". If that is intentional, you may set options(rmarkdown.html_vignette.check_title = FALSE) to suppress this check.