PaperSpigot Compile error

[tassu]

So yeah. I have been trying to decompile PaperSpigot (1.7.10) to add few custom events, but Maven is spamming me with these "Cannot Find Symbol" errors on Paperspigot final jar compile errors. Here's what I did:

• Cloned Paper-1.7 to empty directory
• opened terminal at that directory
• git submodule update --init
• ./applyPatches.sh
• mvn clean install
• Fix dependencies for Minecraft Server module
• mvn clean install again

And now it's giving these "Cannot find symbol" error.
Here's the build output:

I would be really thankful if someone would help me with this.