Error in loadNamespace(name) : there is no package called ‘devtools’ Calls: :: ... tryCatch -> tryCatchList -> tryCatchOne -> <Anonymous> Execution halted about shiny

[cboettig]

I think there are some system dependencies devtools needs to install appropriately, but I think the simplest solution is just to use the recently added rocker/shiny-verse image as your base image instead, which already has devtools installed. e.g.

FROM rocker/shiny-verse:latest
RUN R -e "devtools::install_github('karthik/rdrop2')"

should do it. (aside: note that shiny images already expose 3838, so no need to do so again).

[pozlepster]

Cheers, this solved my problem. I wasn't aware that a rocker/shiny-verse image existed.