Ensure that your Uplay client is up-to-date. To check for updates:
If verifying files does not work, the core Ubisoft Connect installation may be broken. uplay-ach-earnachievement could not be located
The error is a file integrity issue. In 90% of cases, simply using the "Verify Files" function within the Ubisoft Connect launcher will resolve the problem immediately. Ensure that your Uplay client is up-to-date
Navigate to your installation directory (usually C:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher ) and manually delete any remaining folders. uplay-ach-earnachievement could not be located