Minecraft Forums

How do you convert old worlds to the new 1.2 update? When I click on my world Minecraft just crashes and ive never converted map before.

It should work if you just start the world, at least that was what happened to me.

You don't need a new world to get to a jungle biome, but you will have to enter new, unexplored chunks to find one.

If you have problems with that, I don't know what to tell you. If I were you I'd revert to 1.1 until it's fixed, or maybe one of the snapshots..

Alright thanks for the help