How to deploy ASP.NET Core app in subfolder of website in IIS?

I want to be able to access the ASP.NET Core website with a URL such as:

https://www.test.com/myapp

The app works fine if I do not publish it in a subfolder of the IIS website. If I create a new folder (myapp) under it and publish the site there, I get this error:

HTTP Error 502.5 - Process Failure Common causes of this issue:

• The application process failed to start
• The application process started but then stopped
• The application process started but failed to listen on the configured port

This is the error in the event log:

Application <app> with physical root 'C:\web\' failed to start process with commandline ' ', ErrorCode = '0x80070057 : 0.

Is it possible to run the app in a subfolder? If not, then how would I be able to run the site in a way where I can access it with the above URL?

Well I looked around quite a bit for an answer to the exact same question, figured it out for myself. So here it is for the next person: Click on 'Convert to Application' on the folder in IIS!! Assuming your .net core app is sitting in the 'myapp' folder.