I've been creating a mod for some time now. I remember having this issue before going back and rewriting everything. I was placing a lot of a new block that I created and then my game crashed with the following error:

 

 

[21:33:49] [server thread/ERROR]: Encountered an unexpected exception

net.minecraft.util.ReportedException: Ticking memory connection

at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:198) ~[NetworkSystem.class:?]

at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:726) ~[MinecraftServer.class:?]

at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:614) ~[MinecraftServer.class:?]

at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:118) ~[integratedServer.class:?]

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:485) [MinecraftServer.class:?]

at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:752) [MinecraftServer$2.class:?]

Caused by: java.lang.RuntimeException: class zelda.ss.tileentity.TileEntityGoddessWall is missing a mapping! This is a bug!

at net.minecraft.tileentity.TileEntity.writeToNBT(TileEntity.java:96) ~[TileEntity.class:?]

at net.minecraftforge.common.util.BlockSnapshot.<init>(BlockSnapshot.java:52) ~[blockSnapshot.class:?]

at net.minecraftforge.common.util.BlockSnapshot.<init>(BlockSnapshot.java:81) ~[blockSnapshot.class:?]

at net.minecraftforge.common.util.BlockSnapshot.getBlockSnapshot(BlockSnapshot.java:107) ~[blockSnapshot.class:?]

at net.minecraft.world.World.setBlock(World.java:515) ~[World.class:?]

at net.minecraft.world.World.setBlock(World.java:681) ~[World.class:?]

at zelda.ss.item.ItemGoddessWall.onItemUse(ItemGoddessWall.java:27) ~[itemGoddessWall.class:?]

at net.minecraftforge.common.ForgeHooks.onPlaceItemIntoWorld(ForgeHooks.java:507) ~[ForgeHooks.class:?]

at net.minecraft.item.ItemStack.tryPlaceItemIntoWorld(ItemStack.java:142) ~[itemStack.class:?]

at net.minecraft.server.management.ItemInWorldManager.activateBlockOrUseItem(ItemInWorldManager.java:422) ~[itemInWorldManager.class:?]

at net.minecraft.network.NetHandlerPlayServer.processPlayerBlockPlacement(NetHandlerPlayServer.java:593) ~[NetHandlerPlayServer.class:?]

at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:74) ~[C08PacketPlayerBlockPlacement.class:?]

at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:122) ~[C08PacketPlayerBlockPlacement.class:?]

at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:241) ~[NetworkManager.class:?]

at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:182) ~[NetworkSystem.class:?]

... 5 more

 

 

 

I can't seem to remember how to fix this error. Any help

 

Thanks

Did you register your TE?

 

	GameRegistry.registerTileEntity(TileEntityX.class, "something");

No I didn't. That's most likely the problem. I'll try that now.

That fixed it. Thanks!!!