How To Fix Invalid Player Data in Minecraft (2024)

Are you getting the ‘Invalid player data’ error while playing Minecraft? If your answer is YES then look no further as we have got you covered.

For the unversed, Minecraft is a sandbox game developed by Mojang Studios. The game was created by Markus “Notch” Persson and was first introduced publicly in May 2009, and fully released in November 2011.

This game gives its players the freedom to choose how to play the game. In this game, you don’t have to accomplish any goals.

Minecraft has 3D objects like cubes, fluids, and blocks. In addition to this, the game represents various other materials such as dirt, stone, ores, tree trunks, water, and lava.

Players can pick and place these objects somewhere else and arrange them to build new things.

However, because of some unexpected reasons, Minecraft players are facing the Invalid Player Data error which is frustrating.

The worst thing about this error is it occurs in both Solo and Multiplayer modes.

Whenever you encounter this issue, you will get an error message that says “Connection Lost – Invalid Player Data” and there is only one option “Back to Server List”.

Irrespective of whether you are getting Minecraft Invalid player data error in Solo or Multiplayer mode, apply the following methods to get it fixed.

Without any further ado, let’s get started:

How To Fix Invalid Player Data in Minecraft

In the majority of cases, this error occurred because of corrupted game files or when players use mods or plugins to play Minecraft.

Follow the below-mentioned methods to fix the Invalid Player Data error in Minecraft.

Before you start troubleshooting this error, we recommend you create a backup of your world.

Because sometimes the solution you are trying to fix the issue might cause other problems so it’s good to get a backup before troubleshooting any error.

Method 1: Restoring a backup

Our first and simple method to resolve an Invalid Player Data error in Minecraft is Restoring a backup.

If you have a backup of your world then you can go with this method. In this method, we are going to restore a backup which will most likely to fix the problem.

The only drawback of using this method is when you restore your backup, you will overwrite your world, and any progress recorded, since the backup was created, will be lost.

But this is the easiest and most effective method to resolve the Invalid Player Data error in Minecraft.

Method 2: Remove All Player Data Files From Your PC

Sometimes you will get these errors because of faulty or corrupted data files.

So, to resolve the Invalid Player Data error in Minecraft, you will have to remove all player data files from your PC.

You can find these data in Local Disk (C: usually) > Users > YOUR USER > AppData.

You will have to delete all files from the save folder except levelname.txt, world_icon.jpeg, and the files that have the .dat and .dat_old extensions.

Once you delete these files, you need to restart your PC and launch Minecraft to see whether your problem is fixed or not.

Method 3: Uninstall Mods and/or Plugins

If the above methods do not work for you, then chances are high that the Mods or plugins you are using must be leading to this error.

In that case, you have to update all mods that are installed in your Minecraft game, you may be facing this issue because of outdated mods.

So, updating the mods will possibly fix the issue. If not then you should have to uninstall all the plugins and mods from your game to fix the problem.

That’s it.

That’s all you need to know about how to fix the Minecraft Invalid player data error.

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