Why is Visual Studio showing a lot of errors in a freshly created asp.net core + react js project?

Question

ASP.NET

For educational purposes, I created an empty Asp.Net Core + React project.
In all js files, the studio shows a lot of errors.
The project was created from the template of the studio itself, I did not make any changes.
At the same time, the assembly and deployment occur without errors.

Screenshot with example

Why is that and how to fix it?