migrating from Aperture to Lightroom

Here are two more possibilities that came to mind.

1 - What version of Lightroom Classic are you using? Only Lightroom Classic 12.x is supported on Ventura. If you had 11.x installed before upgrading to Ventura, and didn't upgrade LRC, the older v11 will still run but it is not supported and there is no guarantee everything would run correctly.

2 - Aperture was discontinued 9 years ago and macOS Mojave was the last version of macOS that Aperture ran well on. It may be a long shot, but do you have an (older) Mac running macOS Mojave where you could try the migration? When I looked at Adobe's help site, the current help page about migrating Aperture to Lightroom is dated a year ago ... Jan, 17, 2022 ... when Monterey was the current version of macOS ... well before Ventura was released.

There is a possibility that changes in Ventura itself may have something to do with the problem you have encountered. Last fall, for example, one of our community members discovered that Aperture Libraries could no longer be migrated to Apple Photos under Ventura. See: Migrating an Aperture Library to Photos a… - Apple Community While the specific problem described there pertains to the Photos app on Ventura, there may be some underlying incompatibility, or something no longer supported, on Ventura, that also interferes with Lightroom migration.

Also, have you asked about this in the Lightroom Classic forum or the Lightroom Queen forums?

I did look at Full Disk Access. Lightroom wasn't listed there.

Then add it. Even if it doesn't fix the original problem, it's not going to hurt anything.

Full Disk Access is a security feature that first appeared in macOS Mojave. Prior to that all apps by default had access to everything on your Mac. Now, especially with third-party apps, it is often necessary to grant the app Full Disk Access so it can read & write to your drives & folders.

My first thought is that you may need to give Lightroom full disk access.

System Settings > Privacy & Security > Full Disk Access

Creative Cloud is its own app. Lightroom is a separate app.

The confusing part is that Adobe calls all its CC products "Creative Cloud." Adding Creative Cloud to Full Disk Access does not add any individual CC app like Lightroom or Photoshop. You have to give each app Full Disk Access separately.

And, yes, Avalanche works with Lightroom in addition to CaptureOne and quite a few other photo apps. I provided a link in an earlier post here.

thanks Martin. My LR version is the last one, the mac is new (macmini m2). While Aperture3 runs in my old mbp.

I found this alternative procedure to follow http://lightroomsolutions.com/articles/migrating-from-aperture-to-lightroom-where-do-i-begin/ . It sounds good even if actually I do not understand why the official procedure (via plugin) does not work...

Files & folders on your Lacie drive have permissions unless you set "Ignore ownership on this volume" for the drive in GetInfo.

Start by reading the Help in LrC. It has a tool to bring over Aperture Libraries. Doing this is a function of LR, not Aperture. If that doesn't work then try this Avalanche app. Failing that, ask on the Adobe or Lightroom Queen forums, that's where you'll find folks who know their Lightroom. The real problem is that this a procedure that most people did once, eight yearsa go. There is very little community memory left here now.

If nothing else works, it might be worthwhile to look at Avalanche to migrate your Aperture libraries.

Have you asked this on either the Adobe forums or on The Lightroom Queen? Some very knowledgeable folks over on this sites.

Hi All, I'm facing exactly the same issue... I'm trying to solving exporting originals from Aperture (relocate originals function) and then importing in lightroom... but following this procedure only few some photos are imported keeping the star rating... So we need a smarter procedure :-)