Unable to start Kestrel when 'dotnet run' - asp.net

Question

I recently deleted one of the Wi-Fi that was remembered on my computer. Suddenly all projects failed to run.
Here's the console output
$ dotnet run
info: Microsoft.AspNetCore.DataProtection.KeyManagement.XmlKeyManager[0]
User profile is available. Using '/Users/user/.aspnet/DataProtection-Keys' as key repository; keys will not be encrypted at rest.
crit: Microsoft.AspNetCore.Server.Kestrel[0]
Unable to start Kestrel.
System.InvalidOperationException: Unable to configure HTTPS endpoint. No server certificate was specified, and the default developer certificate could not be found.
To generate a developer certificate run 'dotnet dev-certs https'. To trust the certificate (Windows and macOS only) run 'dotnet dev-certs https --trust'.
For more information on configuring HTTPS see https://go.microsoft.com/fwlink/?linkid=848054.
at Microsoft.AspNetCore.Hosting.ListenOptionsHttpsExtensions.UseHttps(ListenOptions listenOptions, Action`1 configureOptions)
at Microsoft.AspNetCore.Hosting.ListenOptionsHttpsExtensions.UseHttps(ListenOptions listenOptions)
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.AddressesStrategy.BindAsync(AddressBindContext context)
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.BindAsync(IServerAddressesFeature addresses, KestrelServerOptions serverOptions, ILogger logger, Func`2 createBinding)
at Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServer.StartAsync[TContext](IHttpApplication`1 application, CancellationToken cancellationToken)
Unhandled Exception: System.InvalidOperationException: Unable to configure HTTPS endpoint. No server certificate was specified, and the default developer certificate could not be found.
To generate a developer certificate run 'dotnet dev-certs https'. To trust the certificate (Windows and macOS only) run 'dotnet dev-certs https --trust'.
For more information on configuring HTTPS see https://go.microsoft.com/fwlink/?linkid=848054.
at Microsoft.AspNetCore.Hosting.ListenOptionsHttpsExtensions.UseHttps(ListenOptions listenOptions, Action`1 configureOptions)
at Microsoft.AspNetCore.Hosting.ListenOptionsHttpsExtensions.UseHttps(ListenOptions listenOptions)
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.AddressesStrategy.BindAsync(AddressBindContext context)
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.BindAsync(IServerAddressesFeature addresses, KestrelServerOptions serverOptions, ILogger logger, Func`2 createBinding)
at Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServer.StartAsync[TContext](IHttpApplication`1 application, CancellationToken cancellationToken)
at Microsoft.AspNetCore.Hosting.Internal.WebHost.StartAsync(CancellationToken cancellationToken)
at Microsoft.AspNetCore.Hosting.WebHostExtensions.RunAsync(IWebHost host, CancellationToken token, String shutdownMessage)
at Microsoft.AspNetCore.Hosting.WebHostExtensions.RunAsync(IWebHost host, CancellationToken token)
at Microsoft.AspNetCore.Hosting.WebHostExtensions.Run(IWebHost host)
at testing.Program.Main(String[] args) in
I was using Visual Studio 2019 for Mac. .NET Core SDK and runtime versions:
dotnet --version
2.2.401
dotnet --list-sdks
2.2.401 [/usr/local/share/dotnet/sdk]
dotnet --list-runtimes
Microsoft.AspNetCore.All 2.2.6 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.All]
Microsoft.AspNetCore.App 2.2.6 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 2.2.6 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
I looked at some stackoverflow answers and they suggest it might be certificate problem. I have tried using the dotnet dev-certs tool to solve but it doesn't work. Plus I encountered something strange:
dotnet dev-certs https --check --verbose
No valid certificate found.
dotnet dev-certs https
A valid HTTPS certificate is already present.
dotnet dev-certs https --trust
Trusting the HTTPS development certificate was requested. If the certificate is not already trusted we will run the following command:
'sudo security add-trusted-cert -d -r trustRoot -k /Library/Keychains/System.keychain <<certificate>>'
This command might prompt you for your password to install the certificate on the system keychain.
A valid HTTPS certificate is already present.
The dev-certs checking option produce contradicting results with command that create the new search
The dotnet-dev-certs version is 2.2.0
In my keychain, there is no certificate for localhost. Then I tried re-installing the dotNET SDKs and Visual Studio but also doesn't work.

Answer 1

I'm going through same problem and finally, I relief from this doing 2 things in command prompt.
dotnet dev-certs https --clean
dotnet dev-certs https --trust
C:\Users\saifs>dotnet dev-certs https --clean
Cleaning HTTPS development certificates from the machine. A prompt might get displayed to confirm the removal of some of the certificates.
C:\Users\saifs>dotnet dev-certs https
The HTTPS developer certificate was generated successfully.
C:\Users\saifs>dotnet dev-certs https --trust
Trusting the HTTPS development certificate was requested. A confirmation prompt will be displayed if the certificate was not previously trusted. Click yes on the prompt to trust the certificate.
A valid HTTPS certificate is already present.