Dad_Yoshi

I installed the latest version of Java 8 (64bit) and things work fine now. (Java 8 update 144).

I have the same issue. I installed a new version of Java 8 recently. I will have to try an older version to see if the issue will go away...

This mod is a great way to overcome the problem with the world generation I was having. http://minecraft.curseforge.com/projects/progressive-world-cleanup Once I got the Block IDs assigned to use lotr:rock as ID 255 I could use Progressive World Cleanup mod to replace it with minecraft:dirt.

Thanks anyway. I found a way to get around the issue via manipulation of how the mods are loaded.

Since the issue seems to be focused around block 255 you should generate a world using Minecraft Server with Forge 10.13.4.1614. Remove the xaero's Minimap, Dynamic Lights, and Optifine before launching the server. Enter the world with the client, go to NEI, then generate a list of blocks. Look at the .csv in a text editor and search for 255. Note the block assigned to that ID. If it is some weird block at some point you will crash the server as you wander around. This has taken as long as 10-15 minutes for me. Also, if you can find some place in the various biomes which use block 255, you will see one messed up world. If you delete the world, rename various mod files so they are in a different order (i.e., make Railcraft load first), you will see block 255 is some other value but the issue still remains.

Well here is an update on this issue. When the world is generated the various mods which add blocks to the game are processed in alphabetical order based on the name of the file in the 'mods' folder. The vanilla blocks go up to around 170 and then new blocks are assigned. You can manipulate which block is given the id of 255 based on which ones you have the system process first. You do this by changing the file name of the mod file and add an '1' or 'a' to the start of the existing name. I was able to have a world generated with tin ore from the LOTR mod be assigned the id of 255. With this I have been able to avoid the crash thus far. However, this has resulted in an overabundance of tin ore in the world but that is minor compared to the crashing/restarting. What I would like to see is a way to assign a specific block to 255 or to somehow have chunk generation substitute it for another.

https://www.dropbox.com/s/2uwv1s1pt91dbrt/AnuranClientModPack.zip?dl=1 This is the link to the client modpack.

Yes, each time I generate a new world I can play for maybe 2-5 minutes until the crash.

http://pastebin.com/bvkzGAms

The OP pastebin link is to a crash report. Is there something else needed?

The OP pastebin link is to a crash report. Is there something else needed?

Yes, it eventually crashes with another block from some other mod (Aether, Railcraft, etc) - each of which are assigned ID 255 (depending upon which mods I am starting with)

Yes, it eventually crashes with another block from some other mod (Aether, Railcraft, etc) - each of which are assigned ID 255 (depending upon which mods I am starting with)

If I use NEI to dump the block data, this is what I have for 255 Thaumcraft:blockWarded,255,true,null,thaumcraft.common.blocks.BlockWarded which is the block ID referenced in the crash log (255 gets assigned to different blocks depending upon which mods I have). In my original crash file (see the pastebin link) it references a block from the LOTR mod.

If I use NEI to dump the block data, this is what I have for 255 Thaumcraft:blockWarded,255,true,null,thaumcraft.common.blocks.BlockWarded which is the block ID referenced in the crash log (255 gets assigned to different blocks depending upon which mods I have). In my original crash file (see the pastebin link) it references a block from the LOTR mod.