can this project working great on 2019.lts unity ?

Not sure what I have to do!
Just sitting here with a folder and questions
I tried googling this and came up with a file type i was supposed to look for that isn't in the repo..
What do i do?
How do i make this my project or import it after i make a project.

I've tried running the project on multiple version of Unity but can't get any of them to work. I need help I've been wanting to learn 2-d game design and thought this would be a nice place to start.

Im pretty new to Unity and am getting this error when opening? Any Ideas?
Assets\Plugins\GitHub\Editor\UnityAPIWrapper.cs(15,17): error CS0103: The name 'UnityShim' does not exist in the current context

Anyone knows how Thomas made the attack down possible in the script? I am trying to find where in the script it is located that he declares that button down + attack makes pound attack down possible so i can modify but i cant find it anywhere. I can see the code where is explains pound and what it does but i cant find where he declares the input in the code for it. I can find all like move jump attack shoot etc declared the exact input controll how to do it, but for the love of god i have spent hours and i cant find the pound attack input. Any help would be great. Please point me to the right direction.

Make game

when i import the package it imports perfectly but when it finishes loading everything i get 28 errors in the cinamachine scripts please fix this

I downloaded the zip file, unzipped it in one folder and then opened it in unity. When it opens there is nothing shown in scene, and also game. I don't know what I am doing wrong. I've attached a snapshot of my screen for you to understand better. Someone please help me.

Hi the character is not moving in the demo level and I am getting a lot of complier errors it is saying input access vertical direction is not set up whenever I launch the game i’m using unity version 2020.3.24

Breakable.cs:
public void GetHurt(int hitPower)

hitPower parameter is not used in method

health -= 1; the hitPower should be used here instead of decreasing by 1

I'm reporting an issue as well as my eventual solution in the hopes that anyone else with this problem will get directed here by Google. To be clear, this wasn't an issue with SuperSimple2DKit, but with how it was downloaded and extracted.

As it says in the subject, my "open" was stalled at "Resolving Packages". Turns out, after I downloaded and extracted the code, all of the files were flagged a read-only. Once I allowed write access, it started working.