app.UseSpaStaticFiles(); app.UseMvc(routes => { routes.MapRoute( name: "default", template: "{controller}/{action=Index}/{id?}"); }); app.UseSpa(spa => { // To learn more about options for serving an Angular SPA from ASP.NET Core, // see https://go.microsoft.com/fwlink/?linkid=864501 spa.Options.SourcePath = "ClientApp"; if (env.IsDevelopment()) { spa.UseAngularCliServer(npmScript: "start"); } });