[MC-120459] Crashes right when joining a single player world: java.lang.StackOverflowError

My minecraft crashed a few days ago and I tried to get back on to my (single player) world. The loading screen comes up, and right when it would put you in your world it crashes. Every other single player and multiplayer world works just fine except this one. I have tried treating it like a corrupted world, creating a copy, replacing the .DAT files with a blank world's, and it works, it is super laggy, and it crashes for no apparent reason. After a few crashes, the same issue happens, and the launcher log looks the same. I have no idea how to replicate this, since it came out of the blue and completely surprised me.

Linked issues

duplicates 1

MC-109348 Game crashes on loading world with a java.lang.StackOverflowError after using structure blocks due to multiple block entities in the same location Resolved

Attachments

017cd580-985e-4e18-9ebf-d5eb563c7c64.dat

017cd580-985e-4e18-9ebf-d5eb563c7c64.json

Comments 22

violine1101 2017-08-29T16:27:09Z

Please attach the save file (zipped). The ticket will be reopened as soon as you attach it.

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pokechu22 2017-08-29T16:29:22Z

Actually, I recognize that stack trace. Were you messing around with structure blocks? If so, this is probably MC-109348 - for some reason, there's 2 block entities at the same location. There's a tool attached to that ticket that should hopefully be able to recover the world (though I wrote that a while ago and I don't remember too much about it).

Still attach the world, though, please.

violine1101 2017-08-30T18:42:44Z

Thanks for uploading the files. (You could just have zipped the file, then you wouldn't have to upload 106 files lol)

The_Fancy_Squid 2017-08-30T19:02:20Z

Yeah, heh heh, so i uploaded the un zipped file, but realized it was un zipped so i deleted all of them and tried to upload the zipped file, but that file was too big so i re uploaded the un zipped file, so yeah... And yes, Pokechu22 I had been using structure blocks recently and i have used them multiple times in the past on that world.

pokechu22 2017-08-30T19:42:29Z

Yep, this is MC-109348.

Duplicate TE at -47 68 -437!
1:
TAG_Compound: 9 entries
{
   TAG_Short("CookTime"): 0
   TAG_Int("x"): -47
   TAG_Short("BurnTime"): 0
   TAG_Int("y"): 68
   TAG_Int("z"): -437
   TAG_List("Items"): 0 entries of type TAG_End
   {
   }
   TAG_String("id"): minecraft:furnace
   TAG_Short("CookTimeTotal"): 0
   TAG_String("Lock"):
}
2:
TAG_Compound: 9 entries
{
   TAG_Short("CookTime"): 0
   TAG_Int("x"): -47
   TAG_Short("BurnTime"): 0
   TAG_Int("y"): 68
   TAG_Int("z"): -437
   TAG_List("Items"): 0 entries of type TAG_End
   {
   }
   TAG_String("id"): minecraft:furnace
   TAG_Short("CookTimeTotal"): 0
   TAG_String("Lock"):
}
Duplicate TE at -47 72 -433!
1:
TAG_Compound: 8 entries
{
   TAG_Int("Secondary"): 0
   TAG_Int("Primary"): 0
   TAG_Int("x"): -47
   TAG_Int("y"): 72
   TAG_Int("Levels"): 0
   TAG_Int("z"): -433
   TAG_String("id"): minecraft:beacon
   TAG_String("Lock"):
}
2:
TAG_Compound: 8 entries
{
   TAG_Int("Secondary"): 0
   TAG_Int("Primary"): 0
   TAG_Int("x"): -47
   TAG_Int("y"): 72
   TAG_Int("Levels"): 0
   TAG_Int("z"): -433
   TAG_String("id"): minecraft:beacon
   TAG_String("Lock"):
}
Rewriting section!
REGION SAVE r.-1.-1.mca[29,4] 3783B = rewrite 171
 --- 29, 5: 16 tile entities ---
Duplicate TE at -47 73 -428!
1:
TAG_Compound: 6 entries
{
   TAG_Int("x"): -47
   TAG_Int("y"): 73
   TAG_Int("z"): -428
   TAG_List("Items"): 0 entries of type TAG_End
   {
   }
   TAG_String("id"): minecraft:chest
   TAG_String("Lock"):
}
2:
TAG_Compound: 6 entries
{
   TAG_Int("x"): -47
   TAG_Int("y"): 73
   TAG_Int("z"): -428
   TAG_List("Items"): 0 entries of type TAG_End
   {
   }
   TAG_String("id"): minecraft:chest
   TAG_String("Lock"):
}
Duplicate TE at -47 73 -426!
1:
TAG_Compound: 6 entries
{
   TAG_Int("x"): -47
   TAG_Int("y"): 73
   TAG_Int("z"): -426
   TAG_List("Items"): 0 entries of type TAG_End
   {
   }
   TAG_String("id"): minecraft:chest
   TAG_String("Lock"):
}
2:
TAG_Compound: 6 entries
{
   TAG_Int("x"): -47
   TAG_Int("y"): 73
   TAG_Int("z"): -426
   TAG_List("Items"): 0 entries of type TAG_End
   {
   }
   TAG_String("id"): minecraft:chest
   TAG_String("Lock"):
}

I still don't know why this happened in the first place, though, other than that structure blocks are involved. You attached your structures, so that should help.

I've attached

[media]

. Replace region/r.-1.-1.mca with it and everything should load fine.

12 more comments

pokechu22 2017-08-30T19:47:22Z

~~I think I may have attached the wrong file as something's definitely missing, so give me a second.~~ Named the file wrong on my side (so the world ended up regenerating those chunks), but the attached one should be fine. If it's not, let me know.

The_Fancy_Squid 2017-08-30T20:08:05Z

Yes, it worked, I can get on to my world now, but where my city was, it is restored with the original biome, no buildings, no streets, it is back to completely before i even started building. some parts on the very edge saved, but not much. Was this supposed to happen? Is there some way to fix it? Is there any possible way to get my save back with very few or no changes?

pokechu22 2017-08-30T20:23:12Z

That wasn't supposed to happen, but that's also what happened to me the first time (the area I logged in to was regenerated). But after trying again and making sure the file I saved was named correctly, everything loaded. I'm... not entirely sure why that happened, to be honest, but it worked fine on the second try.

^{I also had an issue where the +X/-Z part of the world was missing, but that was due to me using the nether}r.0.-1.mca^{file instead of the overworld one - you shouldn't have that problem since the files are organized for you.}

This is what I get when entering the world now - I think that's what it's supposed to be, yes?

The_Fancy_Squid 2017-08-30T20:31:50Z

yes, that is perfect 😃 so all I have to do is do the exact same thing again? just replace the region/r.-1.-1.mca file with the one you gave me?

pokechu22 2017-08-30T20:33:57Z

Yea.

The_Fancy_Squid 2017-08-30T21:06:00Z

Well I tried that 3 more times, each time was was the same, but they were all had more loaded than the very first time, but most of the city is still replaced by what looks like the original biome before i did any terraforming or building. I would add in-game screenshots, but I don't know how 😛 im new to this site and I don't do stuff like this often 😛

The_Fancy_Squid 2017-08-30T21:20:44Z

every time I join that world, another r.-1.-1.mca file appears, i can delete it however many times i want, it just keeps coming back every time i join

pokechu22 2017-08-30T21:23:40Z

Hm, alright... Here's a full zip of the world as I have it (the download button is at the top). I can't say for sure everything there works, but try it out.

The_Fancy_Squid 2017-08-30T21:34:45Z

Not sure what you want me to do with it, but i put in my saves folder, and i cant find it on my worlds list in-game.

pokechu22 2017-08-30T21:36:44Z

Download it and unzip it (into a new folder, not directly into the saves folder). You should have a folder named City (MC-120459) within saves, and then in that folder you should have the normal files for a world (e.g. level.dat); if there's a level.dat file directly within saves, then you extracted it wrong.

The_Fancy_Squid 2017-08-30T22:00:36Z

Ok, it worked 🙂 i got my entire world back, but everytime i join withing a minute or two the launcher always says

Keeping entity minecraft:rabbit that already exists with UUID 8afe6876-36af-4396-ad13-888c04e92e93
Keeping entity minecraft:chicken that already exists with UUID 31b1aab3-f71b-46f2-b342-3486bd6261ff

and then it crashes within a few minutes of that happening.

pokechu22 2017-08-30T22:03:40Z

"Keeping entity" isn't too big of an issue (it just means that there's two entities with the same UUID in the world), but you should be able to just kill the entities in question (/kill 8afe6876-36af-4396-ad13-888c04e92e93 /kill 31b1aab3-f71b-46f2-b342-3486bd6261ff /kill b82c0ac2-b88b-464b-bc24-e303a6046ce9) to solve that.

Can you post the crash report?

The_Fancy_Squid 2017-08-30T22:08:18Z

Um, no, because there is no crash report. It just freezes, and if you click the screen turns lighter, and it says minecraft (not responding) on the top left. If you X out, a box comes up and says 'minecraft isn't responding, would you like to close the program or wait for it to respond', i press close, and it brings me back to the launcher and says that minecraft has crashed.

The_Fancy_Squid 2017-08-30T22:12:56Z

and before i try the /kill command can i just do the /kill b82c0ac2-b88b-464b-bc24-e303a6046ce9 or do i have to do /kill @e[type=b82c0ac2-b88b-464b-bc24-e303a6046ce9] because if i type it in wrong it will kill everything, including item frames and paintings, and i have a TON of those that i don't want to have to go around and replace all of them

pokechu22 2017-08-30T22:13:19Z

That's probably an unrelated problem; I'd advise going to another one of the other 💬 Community support channels (probably IRC would be best). There's a number of different things that can cause it, but a lot of them are driver problems (which are better suited for IRC).

pokechu22 2017-08-30T22:14:32Z

Just directly /kill b82c0ac2-b88b-464b-bc24-e303a6046ce9; it's the same as typing /kill playername.

The_Fancy_Squid 2017-08-30T22:35:27Z

Alright, thanks so much! you fixed my problem and now i can get back to playing my favorite world! 😃