Nix error and I don't know how to resolve it

I am a teacher using replit teams. I have a student who was working on a project and started getting a “nix error” when she compiles.
replitNixError
I know that Nix is a tool designed for managing packages and system configurations, but I’m not sure what happened to cause the error… or how to fix it.
There are no errors in her code. The only way I could think to resolve it is to delete her project and start over, but I don’t think there is a way to do that once a student has started a project. I did delete all the code and then pasted in my code that I know works, but it didn’t fix it.
Also… her other projects compile with no issue.

Hi @kcdill! You will need to send a link to the repl for people to be able to try and help fix the repl.

Hey there, kcdill, welcome to the forums :wave:, what language is your student programming in and what is the link to the repl?

How do I do that? I’m not sure where to send it.

Hi @kcdill try this video. Hope it helps!