When using the instructions in the readme, the maven repo does not properly resolve.

Failed to read artifact descriptor for com.comphenix.protocol:ProtocolLib-API:jar:${minorVersion}: Could not transfer artifact com.comphenix.protocol:ProtocolLib-API:pom:${minorVersion} from/to dmulloy2-repo (http://repo.dmulloy2.net/content/groups/public/): Failed to transfer file: http://repo.dmulloy2.net/content/groups/public/com/comphenix/protocol/ProtocolLib-API/$%7BminorVersion%7D/ProtocolLib-API-$%7BminorVersion%7D.pom. Return code is: 400 , ReasonPhrase:Invalid repository path.

My pom.xml:
https://github.com/Ruinscraft/CHIP/blob/master/pom.xml

Try using 4.4.0

Same result with 4.4.0

It's definitely there: http://repo.dmulloy2.net/nexus/#browse/search=keyword%3Dprotocollib:c60bc6b9612f47d352464aaa20101261

What repo url should I be using? http://repo.dmulloy2.net/content/groups/public/ always returns an error.

Also, FYI, this repo url has worked before in the past.

The repo url is http://repo.dmulloy2.net/nexus/repository/public/

Having issues with http://repo.dmulloy2.net/nexus/repository/public/ as well. Same issue as before. Also, when loading it in a browser:

This maven2 group repository is not directly browseable at this URL.

My apologies, I was using the legacy ProtocolLib artifact and not ProtocolLib-API. The documentation works fine.