Hey there - love the mod. I was excited to see an update so I installed immediately :D

Got a crash on my server. Seems to point to this mod, but not entirely sure:

java.lang.NoClassDefFoundError: wile/engineersdecor/blocks/BlockDecorLabeledCrate$BGui at java.lang.Class.getDeclaringClass0(Native Method) at java.lang.Class.getDeclaringClass(Class.java:1235) at java.lang.Class.getEnclosingClass(Class.java:1277) at java.lang.Class.getSimpleBinaryName(Class.java:1443) at java.lang.Class.getSimpleName(Class.java:1309) at org.spongepowered.mod.util.StaticMixinForgeHelper.getModIdFromClass(StaticMixinForgeHelper.java:323) at org.spongepowered.common.SpongeImplHooks.getModIdFromClass(SpongeImplHooks.java:1994) at org.spongepowered.common.registry.type.block.TileEntityTypeRegistryModule.doTileEntityRegistration(TileEntityTypeRegistryModule.java:156) at net.minecraft.tileentity.TileEntity.handler$zkl000$impl$registerTileEntityClassWithSpongeRegistry(TileEntity.java:3695) at net.minecraft.tileentity.TileEntity.register(TileEntity.java:37) at net.minecraftforge.fml.common.registry.GameRegistry.registerTileEntity(GameRegistry.java:234) at net.minecraftforge.fml.common.registry.GameRegistry.registerTileEntity(GameRegistry.java:239) at wile.engineersdecor.ModContent.registerBlocks(ModContent.java:714) at wile.engineersdecor.ModEngineersDecor$RegistrationSubscriptions.registerBlocks(ModEngineersDecor.java:128) at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_275_RegistrationSubscriptions_registerBlocks_Register.invoke(.dynamic) at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90) at net.minecraftforge.fml.common.eventhandler.EventBus$1.invoke(EventBus.java:144) at net.minecraftforge.fml.common.eventhandler.EventBus.forgeBridge$post(EventBus.java:756) at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:703) at net.minecraftforge.registries.GameData.fireRegistryEvents(GameData.java:845) at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:630) at net.minecraftforge.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:99) at net.minecraftforge.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:333) at net.minecraft.server.dedicated.DedicatedServer.init(DedicatedServer.java:125) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:486) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.ClassNotFoundException: wile.engineersdecor.blocks.BlockDecorLabeledCrate$BGui at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) at java.lang.ClassLoader.loadClass(ClassLoader.java:418) at java.lang.ClassLoader.loadClass(ClassLoader.java:351) ... 26 more Caused by: net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerException: Exception in class transformer net.minecraftforge.fml.common.asm.transformers.SideTransformer@7a8136b3 from coremod FMLCorePlugin at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:260) at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279) at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176) ... 28 more Caused by: java.lang.RuntimeException: Attempted to load class wile/engineersdecor/blocks/BlockDecorLabeledCrate$BGui for invalid side SERVER at net.minecraftforge.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:62) at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:256) ... 30 more

full crash report here if needed:
https://pastebin.com/xgyjJXv0

Hi, this is related to issue #91, the exception occurs during the SpongeForge class scan, we thought that we had found and fixed the issue (I thought I had a reference to the GUI part of the mod somewhere, which is not existing on the server). So it looks the corresponding Sponge issue has to be reopened, too.

SpongePowered/SpongeForge#3122.

crash-report.zip

Related issue: SpongePowered/SpongeForge#3155.

Ok, the sponge guys did close the issue without actually taking care, so I marked ED incompatible with Sponge, as already quite a few other mods. I hoped that this could be circumvented, but unfortunately there does not seem to be a path to resolve this in a cooperative way.