If dev version of a dependency is required, put in "Remotes:"

[jennybc]

I'm about to file an issue re: the as_tibble.list method exported here. It is causing problems in other packages, namely readxl (tidyverse/readxl#482).

But in my attempt to install this and get clear demo of the problem, I discovered ggmosaic requires the dev version of ggplot2. I suggest that you list ggplot2 in the "Remotes:" section of DESCRIPTION during this stage of development. This practice makes it easier for others to install ggmosaic via devtools::install_github().

usethis::use_dev_package() can make the necessary change to DESCRIPTION.