Trying to add leaderboard but have a "Newtonsoft/JsonProperty" issue

I was following this tutorial on how to make a leaderboard

My problem now is this.

I read one of the issues in the video comments that I have to search for the Newtonsoft DLL in my asset folder? I don’t see anything named .DLL, so I don’t know how to look for it or what to do in the scripts. I will not be able to open my project until this is fixed.

Really dumb that they don’t show you in the tutorial but if they’re using newtonsoft JSON you need to install that package:

Thanks.

Some of the builtin packages have Josn.NET as a dependency, so if the tutorial creator had one of those packages in the project it would have been there for them.

Indeed. I would consider it somewhat careless of the tutorial maker to apparently not have tried following their own tutorial from a fresh project.