Unable to Transfer Xbox 360 world to Xbox one world.

You can't transfer it from the memory stick.

Also, you will need to have the "Minecraft Xbox One Edition" game, not the "Minecraft" (without the "Xbox One Edition" in the name).

To transfer your world to the Minecraft Xbox One Edition, start your Xbox 360 Minecraft, and make sure you have the latest version of it installed by having the Xbox 360 connected online to Xbox Live.

The latest Xbox 360 version has a feature to transfer one world at a time to a transfer slot. Upload your world to that transfer slot, and then move to the Xbox One.

Start Minecraft Xbox One Edition. There you will have the option to import a transferred Xbox 360 game from the transfer slot.

Once the world is imported, you can repeat these steps for other worlds you have on the Xbox 360.

After you transferred all your worlds to the Xbox One Edition, you can start the "Bedrock Engine" Minecraft on the Xbox One, and again transfer your worlds from the Xbox One Edition.

If you don't have the Xbox One Edition, but only the Minecraft for Xbox One, please
contact the official support.

In this case you can transfer worlds worlds from Minecraft Xbox 360 Edition to Minecraft Xbox One Edition or/and Minecraft Xbox One Edition to Minecraft.

Cheers!

This may help if not , let me know

How do I transfer my saved worlds from Xbox 360 to Xbox One Edition?

You’ll need to ensure you have the latest update for Minecraft: Xbox 360 Edition by starting the game while connected to Xbox Live. The most recent update contains a feature that allows you to upload one saved
world at a time to a save transfer slot. You can then use the Xbox 360 save download feature on Minecraft: Xbox One Edition to download that world. You’ll need to make sure you download that save to your Xbox One before you can upload a new save using your
Xbox 360. You can do this as often as you like, but you can only transfer one saved world at a time.


How do I transfer my saved worlds from Minecraft Xbox One Edition to Minecraft for Xbox One?

You’ll need to ensure you have the latest update to Minecraft by starting the game while connected to Xbox Live. Choose “Play” and navigate down to the bottom, here you will find a button called “Sync Old
Worlds”. Select this button and choose the world you would like to transfer. You can do this as often as you like, but you can only transfer one world at a time.

It’s not possible to transfer a world directly from Minecraft Xbox 360 Edition to the new version of Minecraft for Xbox One. To do this, you will need to first transfer the world to Xbox One Edition and then to the new version of Minecraft.

You’ll need to ensure you have the latest update for Minecraft: Xbox 360 Edition by starting the game while connected to Xbox Live. The most recent update contains a feature that allows you to upload one saved world at a time to a save transfer slot. You
can then use the Xbox 360 save download feature on Minecraft: Xbox One Edition to download that world. You’ll need to make sure you download that save to your Xbox One before you can upload a new save using your Xbox 360. You can do this as often as you like,
but you can only transfer one saved world at a time.

You’ll need to ensure you have the latest update to Minecraft by starting the game while connected to Xbox Live. Choose “Play” and navigate down to the bottom, here you will find a button called “Sync Old Worlds”. Select this button and choose the world
you would like to transfer. You can do this as often as you like, but you can only transfer one world at a time.

Unfortunatly you cannot transfer the world from one account to the other.

To be able to transfer a world from the 360 version to Xbox one you will need to have the Xbox One edition of the game, then only will you be able to transfer to the newer version, Bedrock Edition. For the same account.