[MC-5446] Conversion from old formats no longer works

If you have maps that were created way back when (the original chunk format), minecraft will no longer offer to convert them.

(I don't know if this was removed purposefully, I had to use MCNostalgia to downgrade to a beta pre-anvil version, then load the map, and upgrade with the older version)

Linked issues

is duplicated by 1

MC-21842 Can't convert Minecraft Worlds made in Beta 1.2 and down. Resolved

relates to 1

MC-5672 Crash when trying to convert an old world Resolved

Attachments

World4.zip

Comments 9

kumasasa 2012-12-28T06:47:48Z

Can you please attach here an old world (prior conversion)

Tom Powell 2012-12-28T23:34:06Z

An effected map (Generated using Beta 1.2_02)

Tom Powell 2012-12-28T23:37:39Z

To my knowledge, I should be able to just throw this in .minecraft/saves, and it should show up in the world list stating "Must be converted".

kumasasa 2012-12-29T00:17:52Z

Your attached world is not shown in my world list.
This world must be very old, it's a pre-Beta 1.3 format, not even pre-Anvil, it's pre-Region.

Tails 2013-04-06T20:19:03Z

Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

Alex Campbell 2013-07-16T00:07:09Z

Is MC-22449 really a duplicate of this?
This is about having no option to convert alpha/chunk-format worlds.
MC-22449 is about crashing when converting beta/region-format worlds.

Tails 2013-07-16T00:14:37Z

You're right, MC-22449 is dupe of MC-5672.

Alex Campbell 2013-07-18T02:01:19Z

MC-5672 was about worlds created from third-party software, and marked invalid because of that.
MC-22449 was about worlds created in Minecraft.

Tails 2013-09-02T14:12:02Z

Step 1: Using the new launcher, load version "release 1.1"
Step 2: Convert the world with that version.
Step 3: Load latest version.
Step 4: Convert the world with the latest version.