I have been running some trials over the last few days and finally seem to have a happy combination for my 11.2 mod pack featuring your mod however I just tried to add it to the server and started receiving crash reports again.

Any chance someone could help me understand what the conflict is please?

crash-2017-03-06_18.35.30-server.txt

The stack trace seems to indicate the the server is missing the Minecraft client class net/minecraft/client/renderer/entity/Render. I will investigate whether the class is needed and/or whether this functionality should be disabled when running server side.

Stacktrace:
net.minecraftforge.fml.common.LoaderExceptionModCrash: Caught exception from BasseBombeCraft (bassebombecraft)
Caused by: java.lang.NoClassDefFoundError: net/minecraft/client/renderer/entity/Render
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at net.minecraftforge.fml.common.ProxyInjector.inject(ProxyInjector.java:85)
at net.minecraftforge.fml.common.FMLModContainer.constructMod(FMLModContainer.java:618)
at sun.reflect.GeneratedMethodAccessor9.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 net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:246)
at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:224)
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 net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:147)
at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:582)
at net.minecraftforge.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:99)
at net.minecraftforge.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:331)
at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:121)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:442)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.renderer.entity.Render
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 30 more
Caused by: java.lang.NullPointerException
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
... 32 more

Thank you.

This will be an amazing addition to the server.

Caused unused rendering code which where plase in the ServerProxy class by a mistake:

RenderManager renderManager = Minecraft.getMinecraft().getRenderManager();
RenderItem renderItem = Minecraft.getMinecraft().getRenderItem();
RenderChicken renderer = new RenderChicken(renderManager);
RenderingRegistry.registerEntityRenderingHandler(GenericEggProjectile.class, renderer);

Related to next server-side issue: #167 .

This bug fix will be released as part of release 1.25 which will be release today.