Unable to run my asp.net mvc web application after installing HangFire - asp.net

Question

I am working on an asp.net MVC-5 web application, and using nuget i installed the hangfire tool:-
Install-Package Hangfire
but when i run my application i got this exception:-
The following errors occurred while attempting to load the app.
- No assembly found containing an OwinStartupAttribute.
- No assembly found containing a Startup or [AssemblyName].Startup class.
To disable OWIN startup discovery, add the appSetting owin:AutomaticAppStartup with a value of "false" in your web.config.
To specify the OWIN startup Assembly, Class, or Method, add the appSetting owin:AppStartup with the fully qualified startup class or configuration method name in your web.config.
second question. if i got the above error fix, how i can call an action method on predefined intervals using hangfire. currently i am defining this inside my glabal.asax as follow:-
static void ScheduleTaskTrigger()
{
HttpRuntime.Cache.Add("ScheduledTaskTrigger",
string.Empty,
null,
Cache.NoAbsoluteExpiration,
TimeSpan.FromMinutes(60)),
CacheItemPriority.NotRemovable,
new CacheItemRemovedCallback(PerformScheduledTasks));
}
static void PerformScheduledTasks(string key, Object value, CacheItemRemovedReason reason)
{
//Your TODO
HomeController h = new HomeController();
var c = h.ScanServer("12345", "allscan");
ScheduleTaskTrigger();
}
protected void Application_Start()
{
AreaRegistration.RegisterAllAreas();
RouteConfig.RegisterRoutes(RouteTable.Routes);
ScheduleTaskTrigger();
}
----EDIT----------
now after adding the startup.css class , i defined the following inside my global.asax :-
HomeController h = new HomeController();
protected void Application_Start()
{
AreaRegistration.RegisterAllAreas();
RouteConfig.RegisterRoutes(RouteTable.Routes);
// ScheduleTaskTrigger();
RecurringJob.AddOrUpdate(() => h.ScanServer("12345","allscan"), Cron.Minutely);
}
mainly to call an action method named "ScanServer" under the Home controller. now the ScanServer is an async task which have the following defenition :-
public async Task<ActionResult> ScanServer(string tokenfromTMS, string FQDN)
{
so my global.asax is raising this error :-
Async methods are not supported. Please make them synchronous before using them in background.

Answer 1

It seems that your OWIN startUp class is missing, So create a class with name Startup:
public class Startup
{
public void Configuration(IAppBuilder app)
{
//..codes
}
}
For your second question, if you want to call a method, for example each hour you can use RecurringJob:
RecurringJob.AddOrUpdate(() => CallMethod(), Cron.Hourly);