Asking for Help With Recompiling a DLL File for Ikenfell

[flat venture]

I genuinely apologize for my intrusion because this post is not about Celeste. I am here because I got stumped in the process of modding a C# game I like, named 'Ikenfell'. Ikenfell has practically no mods, so I have come to this discord because Celeste is built in a similar way to Ikenfell.

The problem I have with coding Ikenfell is the file named 'LittleWitch.dll'. I got ILSpy to decompile it in Visual Studio, and then I made a small bit of code that I inserted into the decompiled DLL. Though, I have no clue how to recompile the DLL after inserting the new code, so now I just have a loose folder of all the LittleWitch code.

Does anyone have a tutorial for recompiling DLL? Every time I try and build it, it fails, and it needs an executable that can reference the NET library, but then it just also fails but with less explanation.

Any help would help, thank you for your time.

(PS. I am not familiar with coding lingo)

[cedar harbor]

It looks like you have compiled successfully. You can find your .dll in [project folder]/bin. Try to replace game's dll with it. (BACKUP BEFORE REPLACE)

[flat venture]

It doesn't look to have worked - I only get the raw ikendll.dll -
LittleWitch.dll is 3726KB, but I am only succeeding in getting a 4KB ikendll.dll

[cedar harbor]

Click on Build>BuildSolution from the menu to compile.