Some modded servers require a specific file. Download the official Steamworks SDK Redistributable (v1.163 compatible) and place steam_api64.dll into your root assettocorsa folder, overwriting the old one.
: Find the file named changelog.txt in that main folder. Edit the Version : Find the very first line (the most recent version). Change the version number (e.g., 1.16.4) to 1.16.3 .
Restart Content Manager; the error message should now be gone. Alternative Solutions
The fastest way to resolve this error involves editing a single text file. Here's your step-by-step guide: assetto corsa is obsolete v1163 is required fix hot
A checksum mismatch occurs when a file on the client PC and on the server are not identical. This is particularly common after game updates. When players get this error, the most frequent cause is that a recent Assetto Corsa update has not been applied to either the client or server.
Here is exactly how to fix the issue and get back on the track immediately. Why This Error Happens
After verifying, Steam will restore acs.exe to v1.163. Now you must tell Content Manager to stop changing it: Some modded servers require a specific file
: Sometimes the launcher gets stuck on old data. Deleting C:\Users\YOURUSERNAME\Documents\Assetto Corsa\cfg\launcher.ini can force the launcher to reset its configuration.
If you are using AssettoCorsa.exe from a "RePack," throw it away. Buy the game on Steam (it is often $5 on sale). Cracked versions hard-code an old version number (often 1.15 or 1.10) that no modern mod supports.
If your game still won't launch or crashes after these steps, this tutorial covers advanced compatibility and driver fixes: How to FIX Assetto Corsa All Errors YouTube• Oct 1, 2024 Edit the Version : Find the very first
The permanent solution is to update Custom Shaders Patch to a version that properly recognizes game version 1.16.4. Here's how:
This ensures your base game is completely up-to-date and has no corrupted files.
Navigate to your (usually SteamLibrary/steamapps/common/assettocorsa ). Find the file named changelog.txt .
The sim racing community has overwhelmingly confirmed the effectiveness of the changelog.txt edit. One user reported: "Ignore it or open changelog.txt in ac folder and change 1.16.4 back to 1.16.3. AC had a small update recently. CM doesn't understand this. Hence the error message. Your game will still work however."