Error upon plugin version update

Could not initialize plugin 'SkillTree v1.7.10' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Core.Plugins.Plugin.Subscribe (System.String hook) [0x00006] in <15f61ddda771464d8246ebdce8ff4811>:0 
  at Oxide.Core.Plugins.CSPlugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x00022] in <15f61ddda771464d8246ebdce8ff4811>:0 
  at Oxide.Plugins.CSharpPlugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x00000] in <42f9bedc659b4f4786eb778d3cd58968>:0 
  at Oxide.Plugins.RustPlugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x0028e] in <f48994c45254478a87476487b14b6e48>:0 
  at Oxide.Core.Plugins.PluginManager.AddPlugin (Oxide.Core.Plugins.Plugin plugin) [0x00027] in <15f61ddda771464d8246ebdce8ff4811>:0 
  at Oxide.Core.OxideMod.PluginLoaded (Oxide.Core.Plugins.Plugin plugin) [0x00035] in <15f61ddda771464d8246ebdce8ff4811>:0 

This still an issue? If so, download it again. Shouldn't be any compile issues caused by update.

I just downloaded and deployed the newest version:

Unloaded plugin Skill Tree v1.7.11 by imthenewguy
Could not initialize plugin 'SkillTree v1.7.11' (NullReferenceException: Object reference not set to an instance of an object)
  at Oxide.Core.Plugins.Plugin.Subscribe (System.String hook) [0x00006] in <15f61ddda771464d8246ebdce8ff4811>:0 
  at Oxide.Core.Plugins.CSPlugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x00022] in <15f61ddda771464d8246ebdce8ff4811>:0 
  at Oxide.Plugins.CSharpPlugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x00000] in <42f9bedc659b4f4786eb778d3cd58968>:0 
  at Oxide.Plugins.RustPlugin.HandleAddedToManager (Oxide.Core.Plugins.PluginManager manager) [0x0028e] in <f48994c45254478a87476487b14b6e48>:0 
  at Oxide.Core.Plugins.PluginManager.AddPlugin (Oxide.Core.Plugins.Plugin plugin) [0x00027] in <15f61ddda771464d8246ebdce8ff4811>:0 
  at Oxide.Core.OxideMod.PluginLoaded (Oxide.Core.Plugins.Plugin plugin) [0x00035] in <15f61ddda771464d8246ebdce8ff4811>:0 

Attached is my JSON

SkillTree.json

Try this:

• Back up and delete your config
• Back up and delete your lang files

Try and load the plugin.

If it fails

• Back up and delete your data folder (data/SkillTree/)

You can disregard all of this, and sorry to bother you. A while back, I integrated a RidableDrone skill under Vehicle, that required some code changes, and the patch wiped them out and I completely forgot I did that. Thank you anyhow.