This document lists four things to check if the Final Cut Pro 3.0.1 Update cannot be successfully completed.
Check these items if the Final Cut Pro 3.0.1 Update cannot be successfully completed.
1. Application renamed
If you've renamed the application to something other than "Final Cut Pro" then the installer won't work.
2. Wrong folder selection
If an alert box with this message appears: "Unable to start Final Cut Pro. One or more plugins are missing", the Updater and the Installer were not installed in the same folder. Repeat the procedure and be careful to choose the folder that contains the Final Cut Pro 3.0 application.
3. Wrong updater
Important: If, after installing the Final Cut Pro 3.0.1 Updater, you are unable to get past the Final Cut Pro serial number dialog, you have used the wrong version of the Final Cut Pro 3.0.1 Updater. Download the version of the Updater that matches your version of Final Cut Pro 3.0, and follow the instructions "When Final Cut Pro 3.0 has already been installed."
4. Get Info window is open
The Show Info window must be closed while the updater is installing the software. Otherwise, the Finder's Show Info window will continue to show the incorrect version, size, and icon until you restart the computer.