I'm tryinng to build the plugin frmo source and it seems like the dependencies could not be found from the repo.

This goes for wanting dependecy for craftbukkit 1.14, 1.15, and 1.16

You first have to build Spigot and CraftBukkit 1.14, 1.15 and 1.16 using Spigot's BuildTools program: https://www.spigotmc.org/wiki/buildtools/