Where do i put the files?

[Loi447]

Im not quite sure where to put the files, i tried launching them, but i was only received with error messages "Package not found" and all

[MOMIN5]

hmm, you tried building from src? if so then dont forget to add spigot-api.jar as a dependency

here is the jar file
https://hub.spigotmc.org/nexus/content/repositories/snapshots/org/spigotmc/spigot-api/1.16.4-R0.1-SNAPSHOT/spigot-api-1.16.4-R0.1-20210108.224031-43.jar

lemme know if you need any help,
If you were trying to directly use it on server, then put the backdoor jar in plugins folder and restart the server
You can grab backdoor jar from the releases