go over those containers again, make sure they match the current version of minecraft.

also, save files need an update too.

Command needed for teleport mod:

[optional argument]

/setwarp warpPointName save the current location for later use.

/warp playerName/warpPointName warps the user to that player or location. if a player have the same name with a location, player is used.

/warp playerName1 playerName2/warpPointName warps the given player1 to that player2 or location.

/summon playerName summon that player to the user.

/sethome [homeName] set current location as a player's home/spawn location if name isn't given, use home by default.

/home [homeName] warps the user to his home.

/back undo the lastest warp.

/back "death" go back to the place where the user died.