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

[pozlepster]

Hi,

I am trying to build a docker contained for a shiny app. I need to include the following packages: readr and rdrop2. I have managed to compile the image with rocker/tidyverse using the following code:

FROM rocker/tidyverse:latest
RUN R -e "devtools::install_github('karthik/rdrop2') "
EXPOSE 3838

The problem is I don't want to user rocker/tidyverse (I don't need RStudio). However, I cannot build the container using rocker/shiny. I tried to install the packages from CRAN, from devetools, but it doesn't help. My docker file is:

FROM rocker/shiny:latest

RUN R -e "install.packages('devtools')"
RUN R -e "install.packages('readr')"
RUN R -e "devtools::install_github('karthik/rdrop2')"

EXPOSE 3838

devtools installation seems to be successful (when I re-run the script docker uses the cache for that part), but then I get the error: Error in loadNamespace(name) : there is no package called ‘devtools’
Calls: :: ... tryCatch -> tryCatchList -> tryCatchOne ->
Execution halted. I would appreciate some advice on how to solve this problem.

[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.