"Update Vuescan/Silverfast DNGs" issue


when I click onthe “Update Vuescan/Silverfast DNGs” command, and press OK then, then the below error message appears:


And at the end of the process I can’t find the NLP profile anywhere.

Any thoughts? Thanks!

Hi, are you using NLP v2.1.2? Can you tell me what operating system and lightroom version you are on?

Hi, I’m using the latest version of NLP (v2.1.2) and Lightroom Classic CC.

Can you go in Lightroom to “Help > System Info” and copy and paste that info so I can get complete picture (operating system, exact LR version number, etc).

Also, can you tell me what specific scanner model you have and what software you used for scanning (Vuescan or Silverfast).

That will provide more clues.

My initial hunch is that it is a folder permission issue with Windows (which is quite common with Windows, unfortunately). If there is a folder permission issue, it won’t be able to write the changes to the file as it should, and it is tricky to solve.


Hi Nate,

please see below my system info (sorry but it’s the italian version…hopefully you could understand the essential info):


I’m using the Epson v600 scanner and Vuescan (latest version).

Thank you.

Thanks @Rockall_8!

First, I would try updating your version of Lightroom to the latest version (LR Classic 9.1). Looks like you are still on 8.1. Some of the earlier 8.x version of Lightroom Classic had issues with folder permission and writing to file.

Upgrading alone may fix it.

If that doesn’t fix it, I would try putting part of that command in the command prompt and see if
you get any errors. Open up the command prompt, and copy/paste this and hit enter:

C: & cd "Users\rocci\Documents\NegativeLabPro.lrplugin" & win\exiftool.exe

You shouldn’t get any errors, it should just show instructions for using exiftool. If you do get errors, take a screenshot and share.

If the above works ok, then copy/paste this command and enter into command line:

C: & cd "Users\rocci\Documents\NegativeLabPro.lrplugin" & win\exiftool.exe -m -overwrite_original -E -UniqueCameraModel="Vuescan RAW" -xmp:CameraProfile="Negative Lab v2.1" "C:\Users\rocci\Pictures\2020\2020-01-11\raw0036.dng"

Again, you should get no error… just some kind of confirmation that the file was changed after a minute or so. If you get an error, screenshot and share.