How do I add csc.rsp to my project?

Questions & Answers
1

I’d like access to System.Data.DataTableExtensions. My understanding is to do this, I need to add that to the csc.rsp file of my project.

When I try to import csc.rsp as an asset, it doesn’t let me (it literally doesn’t show up in the file browser) and there doesn’t seem to be a way to create an arbitrary file in the project.

How do I actually add a csc.rsp file to my project?

2

If you need this to use external dll than you can do this without csc.rsp file but with adding “Additional Compiler Arguments”.

You can check this link:

Or my answer in unity forum:
https://forum.unity.com/threads/error-cs0246-when-building-on-ci-azure-devops-build-agent-with-plugin-dlls.1077869/