MTA:SA launcher code

MTA:SA error CL23

core.dll, one of MTA's own files, is missing.

How to fix it

1. Close MTA

   Close the launcher and the game, so the installer can replace MTA’s files.

   Source: MTA help

2. Run the complete official installer

   Download the current MTA installer from the official site. Install its client into the MTA installation you want to use. Do not download core.dll on its own.

   Source: MTA help, MTA download

3. Start the repaired MTA

   Start MTA with the launcher of that installation and try again. If the same file goes missing again, check whether your antivirus or security program names that file in its notices. Tell MTA support the exact name of the missing file.

   Careful: A missing file does not tell you why it disappeared. Do not restore a file from quarantine if you are not sure it is genuine.

   Source: MTA help, MTA forum

These are the steps of the guide MTA data files or core.dll are missing.

Still not fixed? Copy the whole message, not only the code, and check your log in the Fix tool. It is read on your own computer.

About this code

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 CL23 as core.dll absent.

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