I am getting an error when trying to run Topshelf with Quartz

```
Topshelf.Hosts.ConsoleRunHost Error: 0 : An exception occurred, System.TypeLoadException: Could not load type 
'Quartz.Collection.HashSet`1' from assembly 'Quartz, Version=3.0.7.0, Culture=neutral, PublicKeyToken=*'.
   at Topshelf.Quartz.ScheduleJobServiceConfiguratorExtensions.<>c__DisplayClassa`1.<ConfigureJob>b__3()
   at Topshelf.Runtime.EventCallbackList`1.Notify(T data)
   at Topshelf.Builders.DelegateServiceBuilder`1.DelegateServiceHandle.Start(HostControl hostControl)
   at Topshelf.Hosts.ConsoleRunHost.Run()

```

My code is

```
HostFactory.Run(x =>
        {
            x.Service<Service>(s =>
            {
                s.WhenStarted(service => service.Start());
                s.WhenStopped(service => service.Stop());
                s.ConstructUsing(() => new Service());

                s.ScheduleQuartzJob(q =>
                    q.WithJob(() =>
                            JobBuilder.Create<Notifications>().Build())
                        .AddTrigger(() => TriggerBuilder.Create()
                            .WithSimpleSchedule(b => b.WithIntervalInSeconds(10)
                                .RepeatForever())
                            .Build()));
            });

            x.RunAsLocalSystem()
                .StartAutomatically();

            x.SetDescription("Quartz Service");
            x.SetDisplayName("QuartzService");
            x.SetServiceName("QuartzService");
        });

```

I can't seem to find anything in relation to Quartz.Collection.Hashset with a google search and i'm unsure how to go about getting it if it is missing.