Ender Dragon didn't Spawn

MC-82816 is older than MC-83659
so you didn't find it earlier

MC-84012 and MC-84052 confirms it for 15w31b.

I don't know why but yesterday (29/7) I watched some videos of the new snapshot on youtube and it was working perfectly but when me and my brother tried it out it wasn't working we had to use clay creeper face for the dragon to spawn... I tried it in 2 different worlds and it never spawned if i didn't use the creeper face trick

I don't know why but yesterday (29/7) I watched some videos of the new snapshot on youtube and it was working perfectly but when me and my brother tried it out it wasn't working we had to use clay creeper face for the dragon to spawn... I tried it in 2 different worlds and it never spawned if i didn't use the creeper face trick

Does this happen in new worlds created in 15w31b ? Had that in a 15w31a world played in 15w31b.

Yes. Yesterday I created a new world in the B version and it didnt spawn.

It wont spawn in 15w31c either.

Its not spawning on 15w31c, new world.

Worlds made in 'a' or 'b' will need manual spawning of the dragon, even if you play them in 'c'. Worlds made in 'c' should spawn automatically.

But when I made a world in 'a' it spawn automatically.
Or I just wrong?

Sorry, I wasn't completely accurate there. It may or may not have spawned automatically in 'a' or 'b', depending on a few conditions. If it didn't, it won't spawn in 'c' or above automatically neither (it thinks you've already done the fight.)

To rephrase @unknown: Does this still happen in new worlds created in 15w31c ?

If so, please force a crash by pressing F3 + C for 10 seconds while in-game and attach the crash report ([minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder]) here.

Resolved fixed until further notice.

Forced crash report in 15w32a in a world where the dragon doesn't spawn

This issue still exists in 15w32a. There is neither an Ender Dragon nor the pre-generated portal when I enter the End. My world is from 1.8, but I reset the End by deleting the DIM1 folder. I had not defeated the Dragon in 1.8.x in this world.

Forced crash report attached. My world's seed is -7136671779322761081 in case it matters.

Now I'm stuck in the End lol. I'll play on a different world until the dragon spawns. Thanks for all your help guys!

More info:

• When I create a new world with the same seed the Dragon is alive as expected, and the pre-generated portal is there, too. So a workaround for everyone who has the same problem is this one:
  1. Figure out your seed (e.g. using MCEdit)
  2. Generate a new world with the same seed, preferably in Creative Mode (so you don't have to farm Eyes of Ender to activate the portal)
  3. Go to The End, and go close enough to the obsidian pillar circle to make sure it's all generated
  4. Leave the game
  5. Copy the DIM1 folder from the cheat world to your original world
  6. Enjoy your Drake!
  @stephanie Dumas: As your player data is not stored in the DIM1 folder, you should be in the same place, with the same inventory, just with the dragon around when you try this. But please backup your world before you try, just to be sure.

• I had already played my world in previous 1.9 snapshots, so it's possible that one of the previous snapshots has caused the problem. Or it may occur in 1.8 worlds generally, I can't tell. I also can't remember in which snapshots I actually entered The End.

You don't need MCEdit to figure out the seed, you can simply type /seed, or select the world in the menu, and instead of clicking Play, click "Re-create" and change the game mode to Creative.

I have this problem in 15w35b when i go to the end the first time, no dragon.
My world was made in 15w33c i think

Tried Sylvestrina tip and that makes the dragon spawn, but when i kill it no portal is made.