DEUF – Duplicate Entity UUID Fix Mod 1.15.2/1.12.2 For Minecraft

Category: Cosmetic

DEUF – Duplicate Entity UUID Fix Mod 1.15.2/1.12.2 Fix is a mod for Minecraft that attract many players and the faithful of this game. Avid players make an effort to enhance their Minecraft sensation. When they realize the existence of DEUF – Duplicate Entity UUID Fix, they instantly downloaded and experienced Minecraft with DEUF – Duplicate Entity UUID Fix Mod 1.15.2/1.12.2.

DEUF – Duplicate Entity UUID Fix Mod 1.15.2/1.12.2 is one of the Cosmetic Categories alongside Server Utility, World Gen in Minecraft Mod, and creates on Jun 23, 2018. This mod is designed and developed by CAS_ual_TY.

“Keeping entity minecraft:xxxx that already exists with UUID xxxx”

Now that message can occure quite often in case you use an old world. And there is no fix for it currently even though the bug is listed in the bug tracker for some time now. The logs (and server console, in case you have one – like me) also get spammed quite a lot so I thought I would make a mod which fixes those duplicate UUIDs and thus removes the spam.

DEUF - Duplicate Entity UUID Fix Mod 1.15.2/1.12.2
DEUF – Duplicate Entity UUID Fix Mod 1.15.2/1.12.2

Simply drag and drop the file into your mods folder. Clients do not need to install the mod to join your server (in case you use it for a server – as I do).

When installed, simply explore your world. Initially, the spam will be more than before, since there should be an additional message which tells you that the UUID has been changed. But when reloading the world or restarting the server, that will not occure anymore for that exact entity, which now has a non-duplicate UUID.

I have not tested it a lot. But all short tests I have done were positive and bug free. Still: BACK UP YOUR WORLD BEFORE USING.

How to install DEUF – Duplicate Entity UUID Fix:

Assure that you have already installed Minecraft Forge
Define the location of the Minecraft application folder.
On the windows, open Run from the Start Menu, write %appdata% and click to Run
Open Mac on the finder, press and hold Alt and click to Library on the peak of the Menu Bar. Open the Application Support directory and look for Minecraft.
Put DEUF – Duplicate Entity UUID Fix you have already downloaded (.jar) into Mods directory.
When you start using Minecraft, open the mod button, you will realize that DEUF – Duplicate Entity UUID Fix has been set up.

DEUF – Duplicate Entity UUID Fix Mod Download Links

For Minecraft: 1.15.2
For Minecraft: 1.12.2

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