More traders errors

[theMadness]

[SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'trader' in plugin Citizens v1.0.8
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:37)
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:129)
at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:352)
at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:737)
at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:701)
at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:694)
at net.minecraft.server.Packet3Chat.a(Packet3Chat.java:33)
at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:89)
at org.getspout.spout.SpoutNetServerHandler.a(SpoutNetServerHandler.java:435)
at net.minecraft.server.NetworkListenThread.a(SourceFile:105)
at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:454)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:363)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)
Caused by: java.lang.NullPointerException
at com.fullwall.Citizens.Utils.StringUtils.parseMaterial(StringUtils.java:45)
at com.fullwall.Citizens.Commands.CommandExecutors.TraderExecutor.parseItemStack(TraderExecutor.java:294)
at com.fullwall.Citizens.Commands.CommandExecutors.TraderExecutor.changeTraderStock(TraderExecutor.java:238)
at com.fullwall.Citizens.Commands.CommandExecutors.TraderExecutor.onCommand(TraderExecutor.java:93)
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:35)
... 13 more

This happened after I wiped citizens clear, created an npc called banker, toggled trader on, and issued "/trader sell diamond:1 goldingot:64".

[fullwall]

You entered an invalid material looks like. Does the same thing occur if you use the id for gold ingot instead?

[theMadness]

I'll retry later, can you see if the files I uploaded on dropbox are of any use? Shall I keep providing them?

Btw, I don't have any economy plugin, which is ok with me because I'm the only one who will create npcs and I will have a diamond/goldingot/ironingot based economy.

[theMadness]

Trying the procedure again, keeping track of all I do
/npc create Banker
/toggle trader
stock 64 gold ingots in his first slot, then 64 iron and 64 diamonds
/trader unlimited (wrong syntax)
/trader unlimited true
/trader sell 264:1 266:64
/trader sell 266:1 265:64
/trader buy 265:64 266:1
/trader buy 266:64 264:1
/npc setowner server

Then I realized I needed to change some stuff

/npc setowner myname

...
And so on. Apparently using the id works, but he's not giving out error messages when I use item names. you might want to make that sturdier.