My problem is when I place a Ic2 Block in my server (ic2 support) it crashes with this error message:
[SEVERE] Unexpected exception
java.lang.NoSuchFieldError: e
at ic2.platform.NetworkManager.handlePacket(NetworkManager.java:212)
at ic2.platform.Ic2.HandlePacket(Ic2.java:41)
at ModLoaderMp.HandleAllPackets(ModLoaderMp.java:123)
at Packet230ModLoader.a(Packet230ModLoader.java:171)
at pd.b(NetworkManager.java:234)
at lf.a(NetServerHandler.java:49)
at ew.a(SourceFile:108 )
at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:449)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:349)
at cz.run(SourceFile:465)