Having issues installing Zan/Rei's Minimaps on Tekkit SMP server

[Pilzerino]

Hey again,

I'm having a bit of trouble getting a minimap mod to work on my custom server. I've been told that yes, I can get Rei's Minimap or Zan's Minimap working on SMP, but I haven't been able to do it. All the tutorials I find are for installing it both on vanilla and on single-player mode. Last thing I tried before giving up was simply grabbing the Rei's minimap files from my .technic/modpacks/tekkitmain/mods folder and just tossing them into my tekkit server files, but I got the following error report:

2013-12-05 22:41:10 [sEVERE] [Minecraft-Server] Encountered an unexpected exception NoClassDefFoundError

java.lang.NoClassDefFoundError: net/minecraft/client/gui/GuiScreen

at mod_ReiMinimap.getVersion(mod_ReiMinimap.java:16)

at cpw.mods.fml.common.modloader.ModLoaderModContainer.getVersion(ModLoaderModContainer.java:417)

at cpw.mods.fml.common.Loader.loadMods(Loader.java:508)

at cpw.mods.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:85)

at cpw.mods.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:350)

at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:69)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431)

at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)

Caused by: java.lang.ClassNotFoundException: net.minecraft.client.gui.GuiScreen

at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:238)

at java.lang.ClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

... 8 more

Caused by: java.lang.NullPointerException

at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:227)

... 10 more

2013-12-05 22:41:10 [sEVERE] [Minecraft-Server] This crash report has been saved to: C:\Users\Pilz\Documents\Entertainment\Vidya Games\Minecraft\Tekkit_Server_v1.1.10\.\crash-reports\crash-2013-12-05_22.41.10-server.txt

I'm at a complete loss as to where to go, been doing the time-honoured "Smash-your-monitor-with-your-face-until-it-works" technique, but no luck. Any ideas?

[miniboxer]

Probably because it is a client side only mod. You don't need it on your server.