an error message when starting up the server. HELP!

[WolfCFR]

13.05 12:32:33 [server] INFO Starting minecraft server version 1.5.1

13.05 12:32:33 [server] INFO ... 14 more

13.05 12:32:33 [server] INFO at org.bukkit.craftbukkit.libs.jline.TerminalFactory.create(TerminalFactory.java:77)

13.05 12:32:33 [server] INFO Caused by: java.lang.ClassCastException: org.bukkit.craftbukkit.libs.jline.UnsupportedTerminal cannot be cast to org.bukkit.craftbukkit.libs.jline.Terminal

13.05 12:32:33 [server] INFO at org.bukkit.craftbukkit.Main.main(Main.java:18)

13.05 12:32:33 [server] INFO at net.minecraft.server.MinecraftServer.main(MinecraftServer.java:1678)

13.05 12:32:33 [server] INFO at cpw.mods.fml.relauncher.FMLRelauncher.handleServerRelaunch(FMLRelauncher.java:45)

13.05 12:32:33 [server] INFO at cpw.mods.fml.relauncher.FMLRelauncher.relaunchServer(FMLRelauncher.java:152)

13.05 12:32:33 [server] INFO at java.lang.reflect.Method.invoke(Unknown Source)

13.05 12:32:33 [server] INFO at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

13.05 12:32:33 [server] INFO at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

13.05 12:32:33 [server] INFO at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

13.05 12:32:33 [server] INFO at net.minecraft.server.MinecraftServer.fmlReentry(MinecraftServer.java:1697)

13.05 12:32:33 [server] INFO at net.minecraft.server.dedicated.DedicatedServer.<init>(DedicatedServer.java:69)

13.05 12:32:33 [server] INFO at net.minecraft.server.MinecraftServer.<init>(MinecraftServer.java:228)

13.05 12:32:33 [server] INFO at org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.<init>(ConsoleReader.java:126)

13.05 12:32:33 [server] INFO at org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.<init>(ConsoleReader.java:140)

13.05 12:32:33 [server] INFO at org.bukkit.craftbukkit.libs.jline.TerminalFactory.get(TerminalFactory.java:151)

13.05 12:32:33 [server] INFO at org.bukkit.craftbukkit.libs.jline.TerminalFactory.create(TerminalFactory.java:80)

13.05 12:32:33 [server] INFO [ERROR] Failed to construct terminal; falling back to unsupportedjava.lang.IllegalArgumentException: Invalid terminal type: org.bukkit.craftbukkit.libs.jline.UnsupportedTerminal

[notmeagain]

Did you try a completely clean install of the server?

Wasn't aware that Tekkitmain uses craftbukkit.