When updating my mods I updated mekanism as well to 140 on 1.7.10. I got a crash on my server.

---- Minecraft Crash Report ----
// I blame Dinnerbone.

Time: 12/15/14 5:16 PM
Description: Exception in server tick loop

java.lang.RuntimeException: Serious error calling getRenderType() on block Mekanism:PlasticBlock : Likely cause is client-side code is being called server-side
at com.rwtema.extrautils.tileentity.enderquarry.BlockBreakingRegistry.setupBreaking(BlockBreakingRegistry.java:86)
at com.rwtema.extrautils.ExtraUtils.postInit(ExtraUtils.java:1165)
at com.rwtema.extrautils.ExtraUtilsMod.postInit(ExtraUtilsMod.java:46)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:513)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
at com.google.common.eventbus.EventBus.post(EventBus.java:275)
at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:208)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:187)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
at com.google.common.eventbus.EventBus.post(EventBus.java:275)
at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:118)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:694)
at cpw.mods.fml.server.FMLServerHandler.finishServerLoading(FMLServerHandler.java:97)
at cpw.mods.fml.common.FMLCommonHandler.onServerStarted(FMLCommonHandler.java:324)
at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:280)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:620)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoClassDefFoundError: mekanism/client/ClientProxy
at mekanism.common.block.BlockPlastic.func_149645_b(BlockPlastic.java:129)
at com.rwtema.extrautils.tileentity.enderquarry.BlockBreakingRegistry.setupBreaking(BlockBreakingRegistry.java:81)
... 33 more

im getting it too if it helps: i got this when i updated mekanism to 140 from 135

i have put the crash on extrautils though

That looks to me like ExtraUtils' issue.

Actually, I think it might be us. Give me a second to try something.

ok going to confirm when problem starts

Confirmed problem starts with make glowing plastic blocks glow aka 139

Right, I think this was just me being silly. Try 141 when it's finished building.

k thnx

It's fixed then? OK!

we need this closed

yea sorry i couldnt close it since im not the creator