I'm sure this is something that I missed.

I have a site that is currently running 8.x. I brought a copy of the site along with the database to my laptop, and upgraded it to 9, and everything was good.

Then I took that and upgraded it to 10, and after making some changes for namespaces and some APIs, the site is showing pages.

Just one issue - it is not delivering anything from the file system. So all of the media, CSS and scripts are not getting served. The views seem to be working fine. Unfortunately, the log files don't seem to be telling me why.

My startup.cs looks like this:

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    if (env.IsDevelopment())
    {
        app.UseDeveloperExceptionPage();
    }

    app.UseSystemWebAdapters();
        app.UseStaticFiles()
    app.UseUmbraco()
        .WithMiddleware(u =>
        {
            u.UseBackOffice();
            u.UseWebsite();
        })
        .WithEndpoints(u =>
        {
            u.UseInstallerEndpoints();
            u.UseBackOfficeEndpoints();
            u.UseWebsiteEndpoints();
        });
}

I also deployed this to a new application on my Windows Server 2016 and have the same results.

I know, oh, I'm a dummy! I forgot xxxxx! Well, that's where I hope a quick answer will lead me in the right direction! Thanks!