Bukkit: git-Bukkit-1.2.5-R1.0-b2149jnks (b2149)
Vault: v1.2.15-b165
mChatSuite: v1.2.5-b210jnks-R0.4

[SEVERE] Error occurred while enabling Vault v1.2.15-b165 (Is it up to date?)
java.lang.NoSuchMethodError: in.mDev.MiracleM4n.mChatSuite.mChatSuite.getInfoReader()Lin/mDev/MiracleM4n/mChatSuite/api/InfoReader;
at net.milkbowl.vault.chat.plugins.Chat_mChatSuite.(Chat_mChatSuite.java:54)
at net.milkbowl.vault.Vault.loadChat(Vault.java:165)
at net.milkbowl.vault.Vault.onEnable(Vault.java:109)
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:215)
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:336)
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:381)
at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:250)
at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:232)
at org.bukkit.craftbukkit.CraftServer.(CraftServer.java:184)
at net.minecraft.server.ServerConfigurationManager.(ServerConfigurationManager.java:53)
at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:156)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:422)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

Getting same issue with mChatSuite.

As do I:

2012-04-08 16:35:54 [SEVERE] Error occurred while enabling Vault v1.2.14-b164 (Is it up to date?)
java.lang.NoSuchMethodError: in.mDev.MiracleM4n.mChatSuite.mChatSuite.getInfoReader()Lin/mDev/MiracleM4n/mChatSuite/api/InfoReader;
at net.milkbowl.vault.chat.plugins.Chat_mChatSuite.(Chat_mChatSuite.java:54)
at net.milkbowl.vault.Vault.loadChat(Vault.java:165)
at net.milkbowl.vault.Vault.onEnable(Vault.java:109)
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:215)
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:336)
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:381)
at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:250)
at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:232)
at org.bukkit.craftbukkit.CraftServer.(CraftServer.java:184)
at net.minecraft.server.ServerConfigurationManager.(ServerConfigurationManager.java:53)
at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:156)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:422)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

Fixed in latest DEV build of mChatSuite.

Yeah, same as above with latest Dev build. Definitely not fixed. Maybe someone should open a tick on mChat's bukkit page?

2012-04-09 17:30:21 [SEVERE] Could not pass event PlayerJoinEvent to mChatSuite
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:303)
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:30)
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:459)
at net.minecraft.server.ServerConfigurationManager.c(ServerConfigurationManager.java:132)
at net.minecraft.server.NetLoginHandler.b(NetLoginHandler.java:129)
at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:41)
at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:61)
at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:551)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
Caused by: java.lang.NullPointerException
at in.mDev.MiracleM4n.mChatSuite.events.PlayerListener.onPlayerJoin(PlayerListener.java:215)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:301)
... 10 more
2012-04-09 17:30:21 [INFO] [VanishNoPacket] TnTBass disappeared.
2012-04-09 17:30:21 [WARNING] Task of 'SimpleClans' generated an exception
java.lang.NullPointerException
at net.sacredlabyrinth.phaed.simpleclans.managers.PermissionsManager.addSetMChatClanTag(PermissionsManager.java:149)
at net.sacredlabyrinth.phaed.simpleclans.managers.ClanManager.updateDisplayName(ClanManager.java:289)
at net.sacredlabyrinth.phaed.simpleclans.listeners.SCPlayerListener$1.run(SCPlayerListener.java:286)
at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:126)
at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:517)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
2012-04-09 17:30:21 [INFO] [debug] First entry created!
2012-04-09 17:30:21 [INFO] [debug] world.utopia set for TnTBass
2012-04-09 17:30:21 [INFO] [debug] Setup superperms for TnTBass. took 7ms.
2012-04-09 17:30:21 [INFO] [debug] TnTBass updated via the WorldChecker sync task
2012-04-09 17:30:22 [WARNING] Task of 'mChatSuite' generated an exception
java.lang.NullPointerException
at in.mDev.MiracleM4n.mChatSuite.events.PlayerListener$2.run(PlayerListener.java:196)
at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:126)
at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:517)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
2012-04-09 17:31:33 [INFO] mChatSuite version 1.2.5-b211jnks-R0.5
2012-04-09 17:31:33 [INFO] Full mChat Suite
2012-04-09 17:31:33 [INFO] Website: http://mdev.in/
2012-04-09 17:31:33 [INFO] Author: MiracleM4n

he probably updated, I'll take a look at it.

Ill make PR's for all the changes I make to mChat(Suite) from now on Sleaker.

ah I got it fixed in the last commit. Unless you changed some of your methods around?