4  Troubleshooting

4.1 Package Installation

Package installation can sometime be tricky and can go wrong for several reasons (locked files, outdated dependencies, old R version …). To minimize the chance of errors, follow this checklist:

• Make sure no RStudio Project is loaded (except when using `{renv}`).

• Make sure no package are loaded in the R session. Use Ctrl + Alt + F10 to restart the session to a fresh state.

• Make sure you have a GITHUB_PAT token configured (by running Sys.getenv("GITHUB_PAT") in a R session, it should return a character starting with ghp_). If not, follow these instructions.