Description
"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.
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 - like 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.
https://discord.gg/3zXwr2atcY
Example:
Without Mod:
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID bd4f648f-ca0d-4680-9ed5-d28c68356379
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 1bfcaf96-e93d-4dd8-a402-dc000794acae
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 2a01ea3a-1ac2-48fa-9731-1399c3f5d256
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID c77765cb-f3fa-42d8-9326-52fa7e176dad
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID bd4f648f-ca0d-4680-9ed5-d28c68356379
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 1bfcaf96-e93d-4dd8-a402-dc000794acae
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 2a01ea3a-1ac2-48fa-9731-1399c3f5d256
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID c77765cb-f3fa-42d8-9326-52fa7e176dad
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID bd4f648f-ca0d-4680-9ed5-d28c68356379
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 1bfcaf96-e93d-4dd8-a402-dc000794acae
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 2a01ea3a-1ac2-48fa-9731-1399c3f5d256
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID c77765cb-f3fa-42d8-9326-52fa7e176dad
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID bd4f648f-ca0d-4680-9ed5-d28c68356379
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 1bfcaf96-e93d-4dd8-a402-dc000794acae
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 2a01ea3a-1ac2-48fa-9731-1399c3f5d256
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID c77765cb-f3fa-42d8-9326-52fa7e176dad
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID bd4f648f-ca0d-4680-9ed5-d28c68356379
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 1bfcaf96-e93d-4dd8-a402-dc000794acae
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 2a01ea3a-1ac2-48fa-9731-1399c3f5d256
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID c77765cb-f3fa-42d8-9326-52fa7e176dad
With Mod (first load):
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID bd4f648f-ca0d-4680-9ed5-d28c68356379
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 1bfcaf96-e93d-4dd8-a402-dc000794acae
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 2a01ea3a-1ac2-48fa-9731-1399c3f5d256
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID c77765cb-f3fa-42d8-9326-52fa7e176dad
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID bd4f648f-ca0d-4680-9ed5-d28c68356379
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 1bfcaf96-e93d-4dd8-a402-dc000794acae
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 2a01ea3a-1ac2-48fa-9731-1399c3f5d256
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID c77765cb-f3fa-42d8-9326-52fa7e176dad
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID bd4f648f-ca0d-4680-9ed5-d28c68356379
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 1bfcaf96-e93d-4dd8-a402-dc000794acae
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 2a01ea3a-1ac2-48fa-9731-1399c3f5d256
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID c77765cb-f3fa-42d8-9326-52fa7e176dad
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID bd4f648f-ca0d-4680-9ed5-d28c68356379
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 1bfcaf96-e93d-4dd8-a402-dc000794acae
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 2a01ea3a-1ac2-48fa-9731-1399c3f5d256
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID c77765cb-f3fa-42d8-9326-52fa7e176dad
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID bd4f648f-ca0d-4680-9ed5-d28c68356379
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 1bfcaf96-e93d-4dd8-a402-dc000794acae
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID 2a01ea3a-1ac2-48fa-9731-1399c3f5d256
[17:41:21] [Server thread/WARN] [net.minecraft.world.WorldServer]: Keeping entity minecraft:painting that already exists with UUID c77765cb-f3fa-42d8-9326-52fa7e176dad
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from bd4f648f-ca0d-4680-9ed5-d28c68356379 to ae673ae3-2d57-4cf0-b192-87e4dee826d5
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from 1bfcaf96-e93d-4dd8-a402-dc000794acae to b727c571-7fd0-4e98-8bf2-fd63c935dbc5
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from 2a01ea3a-1ac2-48fa-9731-1399c3f5d256 to 6a6019d7-7c7f-4e90-8c38-9b7de5799efe
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from c77765cb-f3fa-42d8-9326-52fa7e176dad to dd1dc13a-7014-43a2-8dcd-9a242319db28
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from bd4f648f-ca0d-4680-9ed5-d28c68356379 to 1cd933f4-0fe9-4adc-ba88-49e45362922f
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from 1bfcaf96-e93d-4dd8-a402-dc000794acae to 1d2939bd-aa00-488d-9f51-64da4d684b43
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from 2a01ea3a-1ac2-48fa-9731-1399c3f5d256 to 4fa92741-e4de-4878-8de5-3b04ed68aef2
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from c77765cb-f3fa-42d8-9326-52fa7e176dad to 19595751-d5b1-416e-b885-11c0ada925ff
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from bd4f648f-ca0d-4680-9ed5-d28c68356379 to e7fa7ce7-55b4-411f-b6c9-8740dae0d812
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from 1bfcaf96-e93d-4dd8-a402-dc000794acae to 5240568b-3d40-4837-8ca5-cd3b48519d8a
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from 2a01ea3a-1ac2-48fa-9731-1399c3f5d256 to f28fb4ba-b509-40ad-9a97-b9cee67406e1
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from c77765cb-f3fa-42d8-9326-52fa7e176dad to 42999a16-8e11-42ed-b83e-bc3cdee031b8
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from bd4f648f-ca0d-4680-9ed5-d28c68356379 to 0aa6193b-0662-4c11-be18-22031040fb37
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from 1bfcaf96-e93d-4dd8-a402-dc000794acae to d40910d1-213f-4e10-8a54-25c0694b4124
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from 2a01ea3a-1ac2-48fa-9731-1399c3f5d256 to 85099341-acc6-44eb-a8b0-af86ca08446b
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from c77765cb-f3fa-42d8-9326-52fa7e176dad to a4ed61fa-098d-4fab-be2c-d1eee9c06b62
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from bd4f648f-ca0d-4680-9ed5-d28c68356379 to 6bd662c4-6555-438d-a202-a6b962cd56a1
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from 1bfcaf96-e93d-4dd8-a402-dc000794acae to 04a9acdd-6bb4-4c28-9ad7-39fdbc395bad
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from 2a01ea3a-1ac2-48fa-9731-1399c3f5d256 to ed93b32a-58f1-436e-80ac-012e52cedf81
[17:41:21] [Server thread/INFO] [uuidfix]: Changing UUID of entity minecraft:painting that already existed from c77765cb-f3fa-42d8-9326-52fa7e176dad to e13f6b2d-637d-448e-b371-f10e77be5aff
With Mod (second load and beyond):
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What means Verified?
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Compatibility: The mod should be compatible with the latest version of Minecraft and be clearly labeled with its supported versions.
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Functionality: The mod should work as advertised and not cause any game-breaking bugs or crashes.
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Security: The mod should not contain any malicious code or attempts to steal personal information.
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Performance: The mod should not cause a significant decrease in the game's performance, such as by causing lag or reducing frame rates.
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Originality: The mod should be original and not a copy of someone else's work.
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Up-to-date: The mod should be regularly updated to fix bugs, improve performance, and maintain compatibility with the latest version of Minecraft.
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Support: The mod should have an active developer who provides support and troubleshooting assistance to users.
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License: The mod should be released under a clear and open source license that allows others to use, modify, and redistribute the code.
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Documentation: The mod should come with clear and detailed documentation on how to install and use it.
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How to Install
Download Forge & Java
Download Forge from the offical Site or here. If you dont have Java installed then install it now from here. After Downloading Forge you can run the file with Java.
Prepare
Lounch Minecraft and select your Forge istallation as Version this will create a Folder called Mods.
Add Mods
Type Win+R and type %appdata% and open the .minecraft Folder. There will you find your Folder called Mods. Place all Mods you want to play in this Folder
Enjoy
You are now Ready. Re-start your Game and start Playing.
Mineuniverse