2011-07-25 22:57:09 [SEVERE] Error occurred while enabling FalseBookIC v0.87alpha DEV#3 (Is it up to date?): BLOCK_PISTON_EXTEND
java.lang.NoSuchFieldError: BLOCK_PISTON_EXTEND
	at com.gemo.FalseBook.IC.FalseBookICCore.onEnable(FalseBookICCore.java:98)
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:126)
	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:857)
	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:264)
	at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:151)
	at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:136)
	at net.minecraft.server.MinecraftServer.e(MinecraftServer.java:284)
	at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:271)
	at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:148)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:335)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)
2011-07-25 22:57:09 [INFO] [VanishNoPickup] 1.9.12 enabled.
2011-07-25 22:57:09 [INFO] [xAuth] 'Permission' support enabled
2011-07-25 22:57:09 [WARNING] [xAuth] 'Help' isn't detected. No /help support
2011-07-25 22:57:09 [INFO] [xAuth] Connection to H2 database established!
2011-07-25 22:57:09 [INFO] [xAuth] Accounts: 510, Sessions: 0
2011-07-25 22:57:09 [INFO] [xAuth] v2.0b3.5 Enabled!
2011-07-25 22:57:09 [INFO] [FalseBook Block] 3100 Books loaded!
2011-07-25 22:57:09 [SEVERE] Error occurred while enabling FalseBookBlock v0.87alpha DEV#3 (Is it up to date?): BLOCK_PISTON_EXTEND
java.lang.NoSuchFieldError: BLOCK_PISTON_EXTEND
	at com.bukkit.gemo.FalseBook.Block.FalseBookBlockCore.onEnable(FalseBookBlockCore.java:132)
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:126)
	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:857)
	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:264)
	at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:151)
	at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:136)
	at net.minecraft.server.MinecraftServer.e(MinecraftServer.java:284)
	at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:271)
	at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:148)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:335)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)