I am not able to either create or open an ASP.NET Core project using Visual Studio 2019. I left no stone unturned but nothing works so far. Every time opening or creating an ASP.NET Core even with an empty template, Visual Studio starts 'not responding'. I have restarted the PC and run Visual Studio as an admin.
FYI: creating ASP.NET Core using CLI has no issue and I was able to open and run the project using VSCode, but not Visual Studio 2019.
FYI: Visual Studio 2019 Community. Version: 16.5.4
Best Answer
It looks like scaffolding problem. Maybe caches are corrupted.
First of all, here's how to clear the Component Cache.
You could also need to cleanup your user's temp folder:
Then, open the Visual Studio IDE folder in command prompt and Run devenv /resetuserdata from the Visual Studio IDE folder.