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  • Andrei 4 posts 35 karma points
    Oct 17, 2014 @ 16:20

    issue with UrlTracker plugin

    Hi guys,

    I just put live an umbraco 7.1.7 site. We mthen added the UrlTacker plugin

    now the site is coming up with an error and I can't login in the backend either.

    The error is below.

    I have ftp access to the site so the question is how do I manually remove this package and hopefully get the site running again ?

    [NullReferenceException: Object reference not set to an instance of an object.]
       InfoCaster.Umbraco.UrlTracker.Repositories.UrlTrackerRepository.ReloadForcedRedirectsCache() in c:\Users\kipusoep\Documents\GitHub\UrlTracker\Repositories\UrlTrackerRepository.cs:529
       InfoCaster.Umbraco.UrlTracker.UrlTrackerApplicationEventHandler.ApplicationStarted(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext) in c:\Users\kipusoep\Documents\GitHub\UrlTracker\UrlTrackerApplicationEventHandler.cs:44
       Umbraco.Core.EnumerableExtensions.ForEach(IEnumerable`1 items, Action`1 action) +147
       Umbraco.Core.CoreBootManager.Complete(Action`1 afterComplete) +115
       Umbraco.Web.WebBootManager.Complete(Action`1 afterComplete) +48
       Umbraco.Core.UmbracoApplicationBase.StartApplication(Object sender, EventArgs e) +222
    [HttpException (0x80004005): Object reference not set to an instance of an object.]
       System.Web.HttpApplicationFactory.EnsureAppStartCalledForIntegratedMode(HttpContext context, HttpApplication app) +12600621
       System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers) +175
       System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context) +304
       System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +404
       System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +475
    [HttpException (0x80004005): Object reference not set to an instance of an object.]
       System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +12617668
       System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +159
       System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +12457285


  • Stefan Kip 1578 posts 4013 karma points c-trib
    Oct 17, 2014 @ 17:01
    Stefan Kip

    Hi, I'm the creator of the UrlTracker and it's lucky for you I noticed this post, because it should've been created on Github:
    Anyway, just remove the InfoCaster.UrlTracker.* files in your \bin folder.

    The error is really weird btw, it means this line has a NullRef: lock (_cacheLock)

    While this is the defintion of _cacheLock: static readonly object _cacheLock = new object();

    So I really don't get it...

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