# Negative Lab Pro v2.1.2 - error **URL:** \ **Category:** Lightroom Classic CC\ **Created:** [January 15, 2020, 11:54pm UTC](https://forums.negativelabpro.com/t/negative-lab-pro-v2-1-2-error/1153 "2020-01-15T23:54:36Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![irun.147](https://avatars.discourse-cdn.com/v4/letter/i/4da419/32.png) [@irun.147](https://forums.negativelabpro.com/u/irun.147)\ **Post date:** [January 15, 2020, 11:54pm UTC](https://forums.negativelabpro.com/t/negative-lab-pro-v2-1-2-error/1153/1 "2020-01-15T23:54:36Z")
Hi, I’ve yet to see this topic posted and I’ve been trying to solve this problem at home - to no avail - so here goes: I’m trialing Negative Lab Pro v2.1.2 right now. I’ve tried to apply a conversion of a negative to my images but i’m getting the following error: “An internal error has occurred: Negative.lua:227: attempt to index local value ‘t’ (a nil value)” Here are the following fixes I’ve tried, to no avail: -Changing the permissions of the folder in which I have the plugin so it has full control -Changing my NVIDIA drivers (both downgrading and upgrading) -Installing from my root C: drive Any help would be nice, I really like the results I’ve seen on the internet and I want this program to work for me too! ---
**Author:** ![minttt](https://avatars.discourse-cdn.com/v4/letter/m/3d9bf3/32.png) [@minttt](https://forums.negativelabpro.com/u/minttt)\ **Post date:** [January 22, 2020, 9:22pm UTC](https://forums.negativelabpro.com/t/negative-lab-pro-v2-1-2-error/1153/2 "2020-01-22T21:22:33Z")
I’ll second that!! I got the same problem with the exact same error message, also tried different solutions with no luck. I got Win 10, reinstalled LR Classic and the Plug-In of course and followed every step of the installation. I really need this to work and would like to purchase the software, but if its not working i obviously wont do that. Inverting the curve in LR is a bit tedious when i am scanning 2 or 3 films. I was really happy to found this program and now i cant use it ☹ So please, any help for our problem would be much appreciated!!! ---
**Author:** ![ronaldc](https://avatars.discourse-cdn.com/v4/letter/r/90ced4/32.png) [@ronaldc](https://forums.negativelabpro.com/u/ronaldc)\ **Post date:** [August 15, 2020, 11:41am UTC](https://forums.negativelabpro.com/t/negative-lab-pro-v2-1-2-error/1153/3 "2020-08-15T11:41:49Z")
same problem over here!