Right-click Assetto Corsa in your Steam Library , go to Properties > Local Files , and select Verify integrity of game files . Why is this happening?
: Steam updated a minor file, causing a mismatch in version verification.
If you are a sim racer who enjoys modded content for Assetto Corsa , you have likely encountered one of the most infamous and confusing error messages in the community: (often accompanied by a missing or broken link).
Locate the file named inside the root directory.
The following sections provide a clear, step-by-step guide to resolving this error. Start with the quick fixes, which will work for most users, before moving on to more advanced solutions.
Before changing any mod settings, ensure your base game files are healthy and completely up to date. Open your . Right-click on Assetto Corsa and select Properties . Go to the Installed Files tab. Click Verify integrity of game files . Wait for Steam to download any missing or corrupted files. 2. Correct the Content Manager Path
The Custom Shaders Patch (CSP) has a hard requirement for the . If this specific package is missing, outdated, or corrupted, many of CSP's advanced features (such as physics extensions or dynamic lights) will not function, which can manifest as this error.
Don't let the strong wording fool you. This doesn't mean your installation of the beloved racing sim is outdated or broken. It's a simple, albeit cryptic, version mismatch between your game files and your modding tools. This guide will demystify the error, explain its harmless nature, and give you several simple fixes to get you back on the track.
Save your changes, exit the file, and relaunch Content Manager to clear the warning cache. Method 3: Clean Installation of Content Manager and CSP
This guide walks through likely causes and step-by-step fixes for the “v1163 is required” (or similar version/obsolete) message so you can get Assetto Corsa running again.
Why is everyone stuck on this specific version? Stability and compatibility.
Open it and change the top version number from back to 1.16.3 . Save the file and restart Content Manager .
The first thing to understand is that this error message is a symptom of a compatibility hiccup, not a diagnosis of a broken game. At its core, the "Assetto Corsa is obsolete (v1.16.3 is required)" error arises from a simple version mismatch. The Custom Shaders Patch (CSP), a crucial and feature-rich mod for Assetto Corsa, is performing a version check with the base game. To maintain stability, CSP's logic asks, "Is the base game on a version it fully understands?" When the base game is updated, even by a small patch, CSP may not recognize the new version number and, as a safety measure, defaults to showing this error.
: This is the most common community fix.