If you are trying to convert a film negative scan in Negative Lab Pro, and you get this message, then read on for the solution!
Negative Lab Pro depends on two key things to work: 1) the ability to analyze your negative image and 2) the ability to add metadata to your image about that analysis.
If either of these things isn’t working properly with your system or Lightroom, you may see an error like this one when you try to convert an image:
Depending on your situation, there are two potential solves for this issue.
SOLUTION #1: If this happens on EVERY photo, you need to move the plugin itself to a new folder
If you’ve just installed Negative Lab Pro, and you get this error on every conversion attempt, this is a folder permissions issue. You can usually solve this in just a few steps:
- Move the NegativeLabPro.lrplugin to the root of your main drive (like C:)
- In Lightroom, go to Plugin Manager, and remove the current Negative Lab Pro plugin, then add from the new location.
That’s it. In most cases, the plugin in now in a folder that has the permissions it needs to work.
SOLUTION #2: If this only happens on some photos, you need to reset those photos
If Negative Lab Pro works fine converting some images, but you find that any of those same images don’t convert properly in the future, you may need to reset those photos before re-converting.
- Select the photos where you are receiving the error.
- Hit “Cmd-Shift-R” on Mac (or Ctrl-Shift-R on Windows) to reset those photos
- Depending on the image, you may need to re-crop or re-white-balance. You may also need to hit “unconvert” in Negative Lab Pro the next time you run it on the image to then be able to convert again.