Fix 'Serialization Error Action Needed' in Ready or Not: Quick Solutions

Ready or Not might sound like a kid's game, but it's far from it. This intense SWAT-themed FPS can be enjoyed in both single and multiplayer modes. However, players may occasionally encounter technical issues, such as the "Serialization Error Action Needed" error. Here's a comprehensive guide on how to resolve this issue in Ready or Not.

How to Fix 'Serialization Error Action Needed' in Ready or Not

The "Serialization Error Action Needed" error in Ready or Not often comes with the message "Corrupt data found, please verify your installation." This is an Unreal Engine error, and there are several steps you can take to address it.

1. Verify Your Installation

The first step is to follow the error's prompt and verify your game installation. Ensure Steam is not in offline mode, then:

• Go to your Steam Library and locate Ready or Not.
• Right-click on the game and select Properties.
• Navigate to Installed Files and click on Verify Integrity of Game Files.
• Steam will check for any missing or damaged files and re-download them if necessary.
• Restart Ready or Not to see if the issue is resolved. If not, proceed to the next step.

2. Remove Any Mods

The error can also be triggered by outdated or broken mods, especially those not updated for Unreal Engine 5. To remove mods:

• In your Steam Library, find Ready or Not.
• Left-click on Manage and then Browse Local Files.
• Navigate to the ReadyorNot folder, then to Content, and finally to Paks.
• Delete the mod.io folder.
• Launch the game to check if the error persists. Note that this will remove all your mods.

Related: Ready or Not: What’s Better, DirectX 11 or DirectX 12 (DX11 vs. DX12)?

3. Reinstall Your Mods

If the game runs without mods, you can start reinstalling them one at a time:

• Visit Nexus Mods, Mod.io, or your mod source and find the mod pages.
• Check the last update date of each mod. Only install mods updated after July 2024, when Ready or Not transitioned to Unreal Engine 5.
• Install a mod, launch the game, and check for the error. If it reappears, the last installed mod is likely the cause and should be skipped.

If these steps don't resolve the issue, consider uninstalling and reinstalling Ready or Not from scratch. While hard disk corruption is a possibility, most cases of this error are linked to outdated mods.

By following these steps, you should be able to fix the "Serialization Error Action Needed" in Ready or Not and get back to enjoying this gripping SWAT FPS on your PC.