230513 BASIC ASP.NET ERROR

1. NET::ERR_CERT_INVALID

Click anywhere on the browser screen → Enter "thisisunsafe" on the keyboard

2. An error occurred while running the selected code generator. 'Please install package microsoft.visualstudio.web.codegeneration.design and try again.

Install Microsoft.VisualStudio.Web.CodeGeneration.Design nuget

1. Run Visual Studio.
2. Execute the [Tools] / [NuGet Package Manager] / [Package Manager Console] menu.
3. Execute the script below.

PM>Install-Package Microsoft.VisualStudio.Web.CodeGeneration.Design