I cannot delete a photo from Aperture 3
I have a photo in aperture 3 library. I am trying to delete it. There is only one version to which I have made some adjustments. I have tried dragging it to trash. I have tried command delete. I have tried file>delete version, file image and all version. It won't go away. When I am in the browser mode it will disappear from there but it is still shows up in the pictures in the project. I have tried quitting aperture library and coming back in. Still there. I have tried quitting aperture, reopened. Nothing works. It seems to happen with this one picture.
I have been aperture for a while and this has never happened before
I am using os 10.7.5
MacBook Pro