How come an upgraded ASP.net Core 6.0 to 8.0 App isnt automatically able to use the User Secrets Configuration Provider?

Question

I have upgraded my ASP.NET Core app from version 6.0 to 8.0. I have upgraded all the nuget packages.

I have a Secrets.json file in Connected Services in VS 2022. I have the "ConnectionStrings.AppConfig" value in it.

When I start the application it doesn't use the user secrets.

However, when I add "builder.Configuration.AddUserSecrets();" to my Program.cs it works. I shouldn't have to do this.

When I create a brand new ASP.NET Core app everything works fine without me having to put in that line.

What do I need to do to make it work without adding that line of code?

Answer 1

Can you please run these checks to verify:

using Microsoft.Extensions.Configuration.Json;
using Microsoft.Extensions.Configuration.UserSecrets;

var builder = WebApplication.CreateBuilder(args);

var env = builder.Environment;
if (!env.IsDevelopment())
{
    throw new NotSupportedException("Not development env");
}
if (env.ApplicationName.Length == 0)
{
    throw new NotSupportedException("ApplicationName not set");
}

var secretsPath = PathHelper.GetSecretsPathFromSecretsId("8fd96a16-931a-4460-ab39-b58c8acc992e");
if (!File.Exists(secretsPath))
{
    throw new NotSupportedException("secrets.json does not exist");
}

var configSource = builder.Configuration.Sources.OfType<JsonConfigurationSource>().FirstOrDefault(x => x.Path == "secrets.json");
if (configSource is null)
{
    throw new NotSupportedException("No secrets.json in config");
}

var appCongifConnectionString = builder.Configuration.GetConnectionString("AppConfig");
if (string.IsNullOrEmpty(appCongifConnectionString))
{
    throw new NotSupportedException("appCongifConnectionString is empty");
}

Which exception is thrown?