I have a Shiny app that I am trying to deploy to RStudio Connect using the Publish Git-backed Content feature. The Shiny App depends on an R package that I am hosting in a private Gitlab instance. In fact the app is part of the package. I have installed the package using devtools::install_gitlab() without problems and also created a manifest file using rsconnect. However, when I try to deploy I get the following error in RStudio Connect:
Performing manifest.json to packrat transformation.
Cannot create packrat data from manifest.json: Cannot transform manifest into packrat.lock: package DERTtools does not define Repository