Upgrading aperture library
I am having tremendous trouble with this. When I try to open my library it says the library needs to be upgraded. OK, so I let it do that. It then tells me there was an error because it is from an out of date version of aperture and needs to be upgraded. Didn't I just tell it to upgrade? It then creates a microscopic library file and that is that. Nothing in it. Someone suggested option command double click to invoke the tools, at which point it told me time machine was accessing the file. Which it wasn't because for one time machine wasn't running, and for two the disk this library is on is excluded from time machine back ups. For a so-called professional app this thing sure causes a lot of trouble, and seems to have no idea of the concept of version compatibility. Is there ANY WAY I can run SOMETHING on this file to upgrade it, as Aperture certainly doesn't seem to know how to do it. I have about 10 years of photos in this file and backing it up seems to have been a complete waste of time as the original bloody app can't even open it!
Mac mini, macOS 10.14