Massive Core

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❰❰ MassiveCraft on Bukkit ❱❱
MassiveCore | Factions | CreativeGates | Vampire
MassiveBooks | MassiveHat | MassiveTickets

❰❰ Full Documentation ❱❱

❰❰ Techy Things ❱❱
GitHub | Report a Bug

What is MassiveCore?

MassiveCore is a Bukkit plugin that contains components the MassiveCraft developers use for developing other Bukkit plugins:

  • ItemStack and Inventory serialization
  • Commands
  • Plugin Integration
  • Data storage with JSON
  • Disc IO
  • … and much more …


  1. Stop your server.
  2. Put MassiveCore.jar in your plugins folder.
  3. Start your server again.

Plugins Using MassiveCore

Official Server

Factions RPG Minecraft Server
Join in and play with us on the official Factions RPG Minecraft Server!

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  • Avatar of Ironhippy Ironhippy Feb 11, 2016 at 23:03 UTC - 0 likes

    @ckvoss: Go

    If you are still encountering this problem go to the mstore/massivecore_conf/instance.json file. Then change "usingRecipientChatEvent" to false.


  • Avatar of audioXD audioXD Feb 03, 2016 at 16:24 UTC - 0 likes

    How long did it take you guys to create this plugin it is soo well made

  • Avatar of ckvoss ckvoss Jan 03, 2016 at 03:50 UTC - 0 likes

    Hello, my server wanted to get factions today, so i saw i need mcore for it, which i got, but when I installed it, every time someone talked, they talked twice Example: Hey guys! Hey guys! This made spam. I would really love for someone to help me out on this Thanks

  • Avatar of HiddenAether HiddenAether Nov 25, 2015 at 18:55 UTC - 0 likes

    @Inuyasha86000: Go

    Read Below

    If you would like a custom designed website message me on skype @ HiddenAether

  • Avatar of Inuyasha86000 Inuyasha86000 Nov 18, 2015 at 03:53 UTC - 0 likes

    I am running a Kcauldron 1.7.10 server and I am getting this error everytime I login for the first time after booting the server:

    [18:03:36] [Server thread/WARN] [/]: java.lang.ClassNotFoundException: net/minecraft/server/v1_7_R4/PlayerInventory
    [18:03:36] [Server thread/WARN] [/]: 	at java.lang.Class.forName0(Native Method)
    [18:03:36] [Server thread/WARN] [/]: 	at java.lang.Class.forName(Unknown Source)
    [18:03:36] [Server thread/WARN] [/]: 	at com.massivecraft.massivecore.particleeffect.ReflectionUtils$PackageType.getClass(
    [18:03:36] [Server thread/WARN] [/]: 	at com.massivecraft.massivecore.mixin.InventoryMixinDefault.<clinit>(
    [18:03:36] [Server thread/WARN] [/]: 	at com.massivecraft.massivecore.mixin.Mixin.<clinit>(
    [18:03:36] [Server thread/WARN] [/]: 	at com.massivecraft.massivecore.util.IdUtil.playerLoginLowest(
    [18:03:36] [Server thread/WARN] [/]: 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [18:03:36] [Server thread/WARN] [/]: 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    [18:03:36] [Server thread/WARN] [/]: 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    [18:03:36] [Server thread/WARN] [/]: 	at java.lang.reflect.Method.invoke(Unknown Source)
    [18:03:36] [Server thread/WARN] [/]: 	at$1.execute(
    [18:03:36] [Server thread/WARN] [/]: 	at org.bukkit.plugin.RegisteredListener.callEvent(
    [18:03:36] [Server thread/WARN] [/]: 	at org.bukkit.plugin.SimplePluginManager.fireEvent(
    [18:03:36] [Server thread/WARN] [/]: 	at org.bukkit.plugin.SimplePluginManager.callEvent(
    [18:03:36] [Server thread/WARN] [/]: 	at
    [18:03:36] [Server thread/WARN] [/]: 	at
    [18:03:36] [Server thread/WARN] [/]: 	at
    [18:03:36] [Server thread/WARN] [/]: 	at
    [18:03:36] [Server thread/WARN] [/]: 	at
    [18:03:36] [Server thread/WARN] [/]: 	at net.minecraft.server.MinecraftServer.func_71190_q(
    [18:03:36] [Server thread/WARN] [/]: 	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(
    [18:03:36] [Server thread/WARN] [/]: 	at net.minecraft.server.MinecraftServer.func_71217_p(
    [18:03:36] [Server thread/WARN] [/]: 	at
    [18:03:36] [Server thread/WARN] [/]: 	at Source)

    what is causing this.

  • Avatar of MarkehMe MarkehMe Nov 05, 2015 at 22:51 UTC - 0 likes

    @steven10130: Go

    Update to Spigot, or update Spigot.

    @SirFaizdat: Go

    @Glitchblade: Go

    Always use the latest available version of Spigot as that is what Factions is built against. Dev Bukkit does not let you select the latest version.

    @CheesyGamingFTW: Go

    We don't support older versions of MassiveCore and Factions, please update.

    @LardPerk: Go

    You have edited the mplayer data file in mstore, please undo whatever changes you have done to it. Always backup configuration files and databases before manually editing them.

    @LouisSphinx: Go

    This is from Factions. You can find the configuration outline here:

    Set chatSetFormat to false

    @obsidiancraftfactions: Go

    Your server provider has restrictions on the size of files you can upload it, you should contact your provider. If you installed multicraft you can ask them how to raise this limit (

    Want a faster response from me? Follow me and tweet me on twitter! @_markeh BFAK:90607746,6bd5d8183f15ef6bbc8c5469c97e0a66d662d410c11146dc88dbd1a9a0a8f471

  • Avatar of obsidiancraftfactions obsidiancraftfactions Oct 23, 2015 at 16:00 UTC - 0 likes


    I am having a problem with my multicraft panel, when i upload the file into my plugins folder it says its to big.....

    Any solutions?

    - Obsidiancraftfactions

  • Avatar of LouisSphinx LouisSphinx Oct 01, 2015 at 18:28 UTC - 0 likes

    Hey Whenever I Try To Add Massive Core v2.8.0 It Comes Up With <> Around The Names How can I Get Rid Of It?
    Image Here-

  • Avatar of LardPerk LardPerk Sep 26, 2015 at 15:48 UTC - 0 likes

    How can fix that erros? Or disable them from the console?

    My server

  • Avatar of CheesyGamingFTW CheesyGamingFTW Sep 20, 2015 at 11:57 UTC - 0 likes

    Can I have the source for factions 2.6 (1.7 only) and the source for massivecore 7.3 (1.7 only) I want to update it to 1.8 because factions 2.6 is better than 2.7 IMO. My players find it easier to use. My server is 1.8 only though.


Date created
Jan 25, 2012
Last update
Jan 29, 2016
Development stage
  • enUS
MIT License
Curse link
Massive Core
Recent files