How to re-compile this mod (just ask a question)

[Peter-JY]

I'm making another mod, and I want to change the time format to my custom version. I found that this mod is able to do this (certainly I have to change something), but I can't open the .sln, even caused error when referencing header file. So I want to ask how to write a mod for KSP and which library should I install?

[HebaruSan]

Compiling a KSP mod requires referencing the game files. Luckily this repo has workflows set up to build it for pull requests as well as for releases, so you can see exactly the commands that are used:

RSSTimeFormatter/.github/workflows/build.yml

Lines 44 to 45 in 42b4dc3

	- name: Build mod solution
	run: msbuild /p:Configuration=Release /p:ReferencePath="${{ steps.download-assemblies.outputs.ksp-dll-path }}" RSSTimeFormatter.sln

The key appears to be the /p:ReferencePath= argument to msbuild. Presumably you would set this to the path where your copy of KSP lives.