*Ready or Not* may sound like a children's game, but it's far from it—this tactical SWAT FPS offers intense single and multiplayer action. However, you might encounter some technical hiccups, like the "Serialization Error Action Needed" issue. Here's how to resolve it and get back into the action.
How to Tackle 'Serialization Error Action Needed' in Ready or Not
Screenshot via The Escapist
The *Ready or Not* error "Serialization Error Action Needed" often comes with the message "Corrupt data found, please verify your installation." This error is linked to the Unreal Engine, and there are several steps you can take to fix it.
1. Verify Your Installation
Start by following the error's advice and verify your installation. Ensure Steam is not in offline mode, then:
- Go to your Steam Library and locate *Ready or Not.*
- Right-click on it and choose Properties.
- Select Installed Files.
- Click on Verify Integrity of Game Files.
This process checks for any missing or damaged files, which Steam will then re-download if necessary. After this, try launching *Ready or Not* again. If the issue persists, you might need to take additional steps.
2. Remove Any Mods
The "Serialization Error Action Needed" can also result from outdated or broken mods, particularly those not updated for Unreal Engine 5. To remove mods, follow these steps (via CosmoCart):
- In your Steam Library, find *Ready or Not.*
- Left-click on Manage and then Browse Local Files.
- Navigate through the ReadyorNot folder to the Content folder, and then to Paks.
- Delete the mod.io folder.
This should allow the game to run, though you'll be without your mods for the time being.
Related: Ready or Not: What's Better, DirectX 11 or DirectX 12 (DX11 vs. DX12)?
3. Reinstall Your Mods
Next, carefully reinstall your mods one at a time. Visit Nexus Mods, Mod.io, or your preferred mod source, and check the update dates for each mod. Only install mods updated after July 2024, when *Ready or Not* transitioned to Unreal Engine 5. Here's how:
- Download and install a mod.
- Launch the game to check if the error reappears.
- If the error returns, the last mod you installed is likely the culprit. You'll need to skip it until it's updated for UE5.
If these steps don't resolve the issue, consider a full uninstall and reinstall of *Ready or Not*. Though rare, a corrupted hard disk could also be the cause, but most reports point to outdated mods as the primary source of this error.
That's how you can fix the "Serialization Error Action Needed" in *Ready or Not*. The game is available now for PC, so dive back into the action with these solutions in hand.
