) doesn't have the necessary permissions to write to its own folder, or a background process is locking the file. Multi Theft Auto 1. Check for Hanging Processes
The following solutions are ordered from the most effective to the least invasive. gta san andreas failed to open log file
If permission fixes fail, moving the game out of the protected Program Files directory often resolves the conflict. ) doesn't have the necessary permissions to write
Launch the game again.