i get this error when i place a redstone port on version 0.2.5A

using MCPC plus build 158

2013-12-07 19:39:29 [SEVERE] java.lang.NoClassDefFoundError: net/minecraft/client/gui/GuiScreen
2013-12-07 19:39:29 [SEVERE] at erogenousbeef.bigreactors.common.block.BlockReactorRedstonePort.createTileEntity(BlockReactorRedstonePort.java:49)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.world.chunk.Chunk.func_76597_e(Chunk.java:1059)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.world.World.func_72796_p(World.java:3443)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.world.WorldServer.func_72796_p(WorldServer.java:256)
2013-12-07 19:39:29 [SEVERE] at erogenousbeef.bigreactors.common.block.BlockReactorRedstonePort.func_71861_g(BlockReactorRedstonePort.java:80)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.world.chunk.Chunk.func_76592_a(Chunk.java:775)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.world.World.func_72832_d(World.java:850)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.item.ItemBlock.placeBlockAt(ItemBlock.java:314)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.world.World.func_72931_a(World.java:4485)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.item.ItemBlock.func_77648_a(ItemBlock.java:121)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.item.ItemStack.func_77943_a(ItemStack.java:154)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.item.ItemInWorldManager.func_73078_a(ItemInWorldManager.java:557)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.network.NetServerHandler.func_72472_a(NetServerHandler.java:880)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.network.packet.Packet15Place.func_73279_a(Packet15Place.java:79)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.network.TcpConnection.func_74428_b(TcpConnection.java:470)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.network.NetServerHandler.func_72570_d(NetServerHandler.java:233)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.network.NetworkListenThread.func_71747_b(NetworkListenThread.java:54)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.server.dedicated.DedicatedServerListenThread.func_71747_b(DedicatedServerListenThread.java:34)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:913)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:327)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:780)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:662)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.server.ThreadMinecraftServer.run(ThreadMinecraftServer.java:16)
2013-12-07 19:39:29 [SEVERE] Caused by: java.lang.ClassNotFoundException: net.minecraft.client.gui.GuiScreen
2013-12-07 19:39:29 [SEVERE] at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:186)
2013-12-07 19:39:29 [SEVERE] at java.lang.ClassLoader.loadClass(Unknown Source)
2013-12-07 19:39:29 [SEVERE] at java.lang.ClassLoader.loadClass(Unknown Source)
2013-12-07 19:39:29 [SEVERE] ... 23 more
2013-12-07 19:39:29 [SEVERE] Caused by: java.lang.RuntimeException: Attempted to load class awe for invalid side SERVER
2013-12-07 19:39:29 [SEVERE] at cpw.mods.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:50)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:274)
2013-12-07 19:39:29 [SEVERE] at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:172)
2013-12-07 19:39:29 [SEVERE] ... 25 more
2013-12-07 19:39:29 [SEVERE] Encountered an unexpected exception NoClassDefFoundError
java.lang.NoClassDefFoundError: net/minecraft/client/gui/GuiScreen
at erogenousbeef.bigreactors.common.block.BlockReactorRedstonePort.createTileEntity(BlockReactorRedstonePort.java:49)
at net.minecraft.world.chunk.Chunk.func_76597_e(Chunk.java:1059)
at net.minecraft.world.World.func_72796_p(World.java:3443)
at net.minecraft.world.WorldServer.func_72796_p(WorldServer.java:256)
at erogenousbeef.bigreactors.common.block.BlockReactorRedstonePort.func_71861_g(BlockReactorRedstonePort.java:80)
at net.minecraft.world.chunk.Chunk.func_76592_a(Chunk.java:775)
at net.minecraft.world.World.func_72832_d(World.java:850)
at net.minecraft.item.ItemBlock.placeBlockAt(ItemBlock.java:314)
at net.minecraft.world.World.func_72931_a(World.java:4485)
at net.minecraft.item.ItemBlock.func_77648_a(ItemBlock.java:121)
at net.minecraft.item.ItemStack.func_77943_a(ItemStack.java:154)
at net.minecraft.item.ItemInWorldManager.func_73078_a(ItemInWorldManager.java:557)
at net.minecraft.network.NetServerHandler.func_72472_a(NetServerHandler.java:880)
at net.minecraft.network.packet.Packet15Place.func_73279_a(Packet15Place.java:79)
at net.minecraft.network.TcpConnection.func_74428_b(TcpConnection.java:470)
at net.minecraft.network.NetServerHandler.func_72570_d(NetServerHandler.java:233)
at net.minecraft.network.NetworkListenThread.func_71747_b(NetworkListenThread.java:54)
at net.minecraft.server.dedicated.DedicatedServerListenThread.func_71747_b(DedicatedServerListenThread.java:34)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:913)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:327)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:780)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:662)
at net.minecraft.server.ThreadMinecraftServer.run(ThreadMinecraftServer.java:16)
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.gui.GuiScreen
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:186)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 23 more
Caused by: java.lang.RuntimeException: Attempted to load class awe for invalid side SERVER
at cpw.mods.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:50)
at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:274)
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:172)
... 25 more
2013-12-07 19:39:29 [SEVERE] This crash report has been saved to: C:\Minecraft Server\1.6.4-ModPack.\crash-reports\crash-2013-12-07_19.39.29-server.txt

A very silly error on my part. Fixing this now, will put out a 0.2.5A2 very shortly.

Checked my local SMP server, and 0.2.5A2 no longer crashes when placing redstone ports. Thanks for the report!

thanks for the fix!