Solved ProtocolLibrary.getProtocolManager returns null

I can't figure out why it's returning null. I get the manager in onEnable and create a ProtocolHandler object with that (A class I made for handling the ProtocolManager). I also tried getting the manager in the ProtocolHandler's init method, but it still returned null.

Code:

    @Override
    public void onEnable(){
        ProtocolManager manager = ProtocolLibrary.getProtocolManager();
        System.out.println(manager);
        protocolHandler = new ProtocolHandler(this, manager);
        protocolHandler.addPacketListener(PacketType.Play.Client.UPDATE_SIGN, new onClientUpdateSign());
    }

I also have the depend in plugin.yml, the ProtocolLib plugin in my plugins folder, and the dependency in my pom.xml file.

Code:

depend: [ProtocolLib]

Code:

    <dependency>
      <groupId>com.comphenix.protocol</groupId>
      <artifactId>ProtocolLib</artifactId>
      <version>4.6.0</version>
    </dependency>

Thanks in advance for any help!

https://www.spigotmc.org/threads/protocollibrary-getprotocolmanager-returns-null.507594/ this fixed my problem

EDIT by Moderator: merged posts, please use the edit button instead of double posting.