❔ Project is not specified on Rider

I am following this ASP.NET Core tutorial https://www.youtube.com/watch?v=pzFY45La2LE&t=972s with Rider.
As soon as I hit the run button, my Rider prompts this edit configuration window with the error message "project is not specified" on the bottom as per screenshot.
Some of the blank sections are just disabled, I cannot fill in or select any options.
My expected outcome here is to view a swagger page, it should be doable with Rider too. Could anyone kindly point out what I have done wrongly?
How did you create this project?
I did everything in this instruction except for the NewtonJson
Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.