Can't delete an event in iMovie because 'the library must contain at least one event' When I try to delete an event in iMovie it tells me, 'the library must contain at least one event.' I have made so many events just to try to delete this one and yet the same message appears.
If it's the only event in a project, you can't delete it, because you can't delete the last event in a project, regardless of how many events you have in other projects. Instead, delete the entire project.