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  • n00b 33 posts 134 karma points
    Mar 01, 2018 @ 16:30
    n00b
    0

    500 Error in console, but page renders fine?

    Hi all.

    Running Umbraco version 7.5.3 assembly: 1.0.6092.24019

    The links to a handful of newly created product pages work and the pages render, however the console (and other crawlers) detect a 500 error.

    I'm not an .asp developer, so not sure where to start looking, however the most similar post i've found online would be this:

    https://forums.asp.net/t/1712160.aspx?My+page+is+rendered+correctly+but+it+returns+500+Internal+Server+Error+error+when+validated+by+W3C

    The URL in question is https://www.able-systems.com/industry-solutions/printer-mechanisms/aps-kiosk-printers/

    When you paste the link or follow it, you'll see the 500 error in console, however when you refresh the page, it disappears.

    Any help/advice (or even better, an easy solution) would be well received.

  • Joshua Lemli 52 posts 234 karma points
    Mar 02, 2018 @ 17:28
    Joshua Lemli
    0

    It looks like it's trying to load "aps-kiosk-printers", locally referenced... which is the tail bit of your URL.

    So could this just be a routing issue? Do you have any custom routing?

  • n00b 33 posts 134 karma points
    Mar 05, 2018 @ 10:59
    n00b
    0

    Not sure - where would I look? It uses a redirect plugin called UrlTracker. Is there some option I may have missed? It's strange that it loads the page anyway, regardless of the 500 error.

  • Steve Morgan 1348 posts 4457 karma points c-trib
    Mar 05, 2018 @ 11:28
    Steve Morgan
    0

    There's an error being output in the source which might be the cause.

    What's at line 22 in your RichText.cshtml template?

    <!-- Error rendering template with id 8000: 'System.NullReferenceException: Object reference not set to an instance of an object.
       at ASP._Page_Views_RichText_cshtml.Execute() in c:\HostingSpaces\able-systems\able-systems.com\wwwroot\Views\RichText.cshtml:line 22
       at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
       at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
       at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
       at Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
       at System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context)
       at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
       at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
       at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
       at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
       at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult)
       at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)
       at System.Web.Mvc.Controller.ExecuteCore()
       at System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext)
       at System.Web.Mvc.MvcHandler.ProcessRequest(HttpContextBase httpContext)
       at Umbraco.Web.Templates.TemplateRenderer.RenderUmbracoRequestToString(RequestContext requestContext)
       at Umbraco.Web.Templates.TemplateRenderer.ExecuteTemplateRendering(TextWriter sw, PublishedContentRequest contentRequest)
       at Umbraco.Web.Templates.TemplateRenderer.Render(StringWriter writer)
       at umbraco.library.RenderTemplate(Int32 PageId, Int32 TemplateId)' -->
    
  • n00b 33 posts 134 karma points
    Mar 05, 2018 @ 11:30
    n00b
    0

    This is line 20 - 32:

       if (string.IsNullOrEmpty(linkTitle))
                        {
                            linkTitle = link.Name;
                        }
    
                        if (link != null)
                        {
                            <a href="@link.Url" class="custom-btn outlined red large pill">
                                <i class="fa fa-share-alt"></i>
                                @linkTitle
                            </a>
                        }
                    }
    
  • n00b 33 posts 134 karma points
    Mar 05, 2018 @ 11:39
    n00b
    0

    Having a look through some of these pages, it appears there is a compulsory link to a product (weirdly -even for products) which needs adding or it throws a wobbly.

    Thanks for all your help fellas. Much appreciated.

    I've just added it in, and the page no longer has a 500 error. I might need to add another if statement to have it check this and avoid future problems.

  • Steve Morgan 1348 posts 4457 karma points c-trib
    Mar 05, 2018 @ 12:01
    Steve Morgan
    0

    Hi,

    Hard to guess but shouldn't you just negate the logic .. e.g. if it's null then DON'T try to access the link name!

    if (!string.IsNullOrEmpty(linkTitle))

  • n00b 33 posts 134 karma points
    Mar 05, 2018 @ 12:17
    n00b
    0

    Thanks, will try that Steve and see how it affects pages. I didn't build the site, so I'm still working my way around how all the elements are connected.

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