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MTA:SA launcher code

MTA:SA error CL40

The versions of MTA's files do not match each other.

Code
CL40
Where you see it
The MTA launcher, before the game opens
MTA's own wording
File-version mismatch
Family
CL codes

What it means

It usually follows a partial update, or files copied in from another installation.

CL codes come from MTA's launcher, before the game starts: installing an update, finding GTA, loading MTA's own files or starting gta_sa.exe. MTA's own documentation gives this code as File-version mismatch.

How to fix it

Work down the list and stop when it is solved.

Longer version, with a source on every step: MTA file version mismatch or incompatible network module.

  1. Repair your MTA installation

    Run the current installer from multitheftauto.com over your existing installation. It replaces MTA's own files without touching your settings.

  2. Install MTA fresh if it repeats

    Uninstall MTA, delete what is left of its folder, and install the current version from multitheftauto.com.

Still stuck? The Fix tool reads MTA's own log on your computer and points at the matching steps. Nothing is uploaded.

Open the Fix tool

Other CL codes

Where this comes from

Official Error Codes catalog; historical entries retained and installed-release applicability unverified.

Meanings read from these sources on 5 September 2026 and written in our own words here.