(if verify fails)
If you are still facing issues, run through this quick checklist:
Sometimes, the official patches are broken. Ubisoft released a hotfix that manually replaces the filelistxml.txt . You can find community-hosted copies of the correct file.
The FileListXML.txt error occurs when the game fails to read the FileListXML.txt file, which is a crucial file required for the game to function properly. This file contains a list of all the game's files, and the game uses it to verify the integrity of its content. When the game encounters an error while reading this file, it displays an error message, preventing players from accessing the game's content.
Disable all non-essential programs and reboot your computer. :
If the problem persists, consider updating Windows, DirectX, and Visual C++ runtimes, as outdated system files can also trigger false path errors.