I am running Lightroom Classic on windows and when I click on NLP under the plugins tab nothing happens and it doesn’t open. Sometimes when I restart the computer it will work once or twice and then it will stop opening. This has literally only just started being an issue for me tonight.
I have tried deleting the plugin and readding, I have tried redownloading and reinstalling but so far have had no luck. Any ideas?
A few things to try (in order) to figure out what has gone wrong:
Try resetting your Lightroom preferences. After you reset your preferences, you will need to go back into “file > plugin manager” and add back in the “NegativeLabPro.lrplugin” plugin. If there is an issue with metadata or conflict with another plugin, this should clear it out.
Try restarting Lightroom Classic, and importing completely “fresh”, untouched negatives. See if Negative Lab Pro will work properly on those fresh negatives. If that works, there could be a metadata issue with the existing conversions.
If that still doesn’t work, try creating a new catalog in Lightroom, then add fresh negatives, and see if those convert.
Let me know if any of those enable you to open NLP.
I just tried making a whole new catalog and importing everything over to that. It appears to be working now which is grand! No idea what the issue was, but thought it was good to update if someone else has this issue!
Yes sorry I should have clarified that I did try option 1 - I just gave it another shot and it hasn’t fixed it.
The issue only happens some of the time. Generally I’ve noticed it starts when I try to edit one particular roll. I use the multiple select and then open NLP feature a lot since it’s been released with V2.3.
So I opened each file in the roll individually in NLP and I believe the error starts as a result of an edited TIF file that I opened in photoshop and then was reimported back into the folder when I closed it. If you open this file individually it gives an error in NLP (as it should - something about the fact it’s not a negative) and then NLP continues to work fine. However it seems if you multiselect photos (with the TIF included) and then try to open it NLP will just not open. And then all subsequent attempts to open the program fail.
I kept having this issue simply because I kept going back to trying to edit this particular roll of film and kept multi-selecting.
What I will do is send you over the TIF file so you can see if you can recreate this error? It may be this is not the actual cause and there is something else wrong at my end… If it does do the same for you potentially then it is a minor bug?
Hey @nate. thanks for the speedy reply! I was away from my Lightroom PC for the last few days but now that I’ve returned it works again exactly as I’d hope! I suspect I was “holding it wrong” somehow, likely by being in the wrong module as you suggest. Thanks again!
Hi, @nate , I have the same problem when trying to run the plugin in LR Classic 2021 on Windows 10, I’ve recently installed it and it’s not working. Also I have tried the 3 options you gave at the beggining of this topic but it remains not working.
HI, @nate thanks for your answer, unfortunately I’ve already tried that and doesn’t work.
When I click on Convert Negatives icon it charges until 50% and then a message box appears.
This is the message:
“ERROR. could not write photo for analysis.
Plugin Folder: C:/Program Files/Adobe/Common/Plug-ins/NegativeLapPro.lrplugin
If the problem persists, it may be a folder permissions issue. This can usually be…” and the last part of the message is lost, it doesn’t allows me to scroll down to read about it
Is there a possibility to try with and older version of NLP, I used it a lot in 2020 and never had a problem.
Thanks again, hope this could have a solution soon.