.NET Core 500 Exception how to see your errors

If you are developing using .Net Core be sure to set the final Configure to the following and be sure to use your keyboard short cut alt+enter to bring in the missing using namespaces for your references needed. public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory) { env.EnvironmentName = EnvironmentName.Development; if (env.IsDevelopment()) { app.UseDeveloperExceptionPage(); } else { app.UseExceptionHandler("/error"); } app.UseStatusCodePages(); // Enable middleware to serve generated Swagger as a JSON endpoint. app.UseSwagger(); // Enable middleware to serve swagger-ui (HTML, JS, CSS, etc.), // specifying the Swagger JSON endpoint. app.UseSwaggerUI(c => { c.SwaggerEndpoint("/swagger/v1/swagger.json", "My API V1"); c.RoutePrefix = string.Empty; }); app.UseMvc(); } }