I am trying to create my own R package. But after I build it (using R version 3.5.1, Rtools 3.5) and try to install it I get this error: package ‘path-to-tar.gz’ is not available (for R version 3.5.1).
Can I somewhere determine which versions of R is compatible? It is a extremely simple one, just a collection of functions.
The code is here: https://github.com/jacobfredsoee/LCEF
EDIT: Thank you all, this was indeed so simple a solution I feel ashamed. All I needed to do was to add ", repos = NULL" to the install.