Click OK and the application will recognize the sparse image. This was broken in version 10.0.4, but has now been fixed in v10.0.5.
All of these projects and events were originally created using FCP 10.0.2, and have been updated subsequently, but are likely not in the most recent version. When you launch a newer version of the software, you will get a dialog box asking you to update the Projects and Events, to which you should click OK.
Click OK and the application will recognize the sparse image. This was broken in version 10.0.4, but has now been fixed in v10.0.5.
All of these projects and events were originally created using FCP 10.0.2, and have been updated subsequently, but are likely not in the most recent version. When you launch a newer version of the software, you will get a dialog box asking you to update the Projects and Events, to which you should click OK.