countimp is one of the package of multiple imputation for count or compositional data.
This package should be able to be installed with the following code from Github¹.
devtools::install_git(url = "https://github.com/kkleinke/countimp", branch = "master")
However, with this code, I got the below error message and could not install it.
Error: Failed to install 'unknown package' from Git: Git does not seem to be installed on your system.
The Solution I found.
I do not know why but this problem was solved with this code.
I hope this will help.