java.lang.NoSuchMethodError: com.earth2me.essentials.User.giveMoney(I)V
        at com.earth2me.essentials.eco.Commandsell.run(Commandsell.java:53)
        at com.earth2me.essentials.commands.EssentialsCommand.run(EssentialsCommand.java:42)
        at com.earth2me.essentials.eco.EssentialsEcoWorker.onCommand(EssentialsEcoWorker.java:48)
        at com.earth2me.essentials.eco.EssentialsEco.onCommand(EssentialsEco.java:46)
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:17)
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:77)
        at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:171)
        at net.minecraft.server.NetServerHandler.c(NetServerHandler.java:610)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:589)
        at net.minecraft.server.Packet3Chat.a(SourceFile:24)
        at net.minecraft.server.NetworkManager.a(SourceFile:232)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:74)
        at net.minecraft.server.NetworkListenThread.a(SourceFile:104)
        at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:317)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:232)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:512)