nullreferenceexception on multiple pages

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Andrew Cullen 137 posts 237 karma points

Jan 30, 2014 @ 16:48

I'm running uBlogsy 3.0.1 in umbraco 6.1.6. all had been going swimmingly until yesterday, when I started getting multiple NullReferenceException errors. On the landing page for the blog, the error is

Source Error:


Line 46: 
Line 47:     // show each post
Line 48:     foreach (var n in posts)
Line 49:     {
Line 50:         @Html.Partial("uBlogsy/Landing/uBlogsyLandingShowPost", new ViewDataDictionary(ViewData) { { "Node", n }, { "GravatarSize", 40 }, { "ImageWidth", 300 }, { "ImageHeight", -1 } })

Source File: c:\inetpub\etc-umb-616\Views\Partials\uBlogsy\Landing\uBlogsyLandingListPosts.cshtml Line: 48

On blog post pages, the error is:

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error:


Line 18:     var month = Request.QueryString["month"];
Line 19:     var day = Request.QueryString["day"];
Line 20:     var prev = PostService.Instance.GetNextPost(Model.Content, tag, label, author, searchTerm, commenter, year, month, day);
Line 21:     var next = PostService.Instance.GetPreviousPost(Model.Content, tag, label, author, searchTerm, commenter, year, month, day);
Line 22: }

Source File: c:\inetpub\etc-umb-616\Views\uBlogsyPost.cshtml Line: 20

The only change that I can see is that someone added a new blog post (the second in the new year, if that matters).

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Emil Badh 8 posts 29 karma points

Feb 19, 2014 @ 15:49

0

I had the same problem and it seems to originate with the PostService not being available.

I restarted the website (by editing the web.config file). It doesn't answer why the problem occured but it made it go away, at least for now.

Edit: It came back the next day so this is not a fix.

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Biagio Paruolo 1618 posts 1910 karma points c-trib

Mar 04, 2014 @ 14:45

0

I've the same problem!!!!!! How solve!!!! Where is the author?

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Biagio Paruolo 1618 posts 1910 karma points c-trib

Mar 04, 2014 @ 15:10

0

I tried to edit web.config and site start working again!!! But how solve this?????? Which is the problem????

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Biagio Paruolo 1618 posts 1910 karma points c-trib

Mar 04, 2014 @ 15:13

0

No crash again:

ERROR Umbraco.Core.UmbracoApplicationBase - [Thread 42] An unhandled exception occurred

System.NullReferenceException: Object reference not set to an instance of an object.

in Umbraco.Web.PublishedCache.XmlPublishedCache.PublishedContentCache.<get_GetXmlDelegate>b__2(UmbracoContext context, Boolean preview)

in Umbraco.Web.PublishedCache.XmlPublishedCache.PublishedContentCache.GetById(UmbracoContext umbracoContext, Boolean preview, Int32 nodeId)

in Umbraco.Web.PublishedCache.ContextualPublishedCache`1.GetById(Boolean preview, Int32 contentId)

in Umbraco.Web.UmbracoHelper.TypedDocumentById(Int32 id, ContextualPublishedCache cache)

in uHelpsy.Helpers.IPublishedContentHelper.GetNode(Int32 nodeId) in d:\_PROJECTS\Personal\uHelpsy - Library\uHelpsy\Source\uHelpsy.Web\Helpers\IPublishedContentHelper.cs:riga 24

in uHelpsy.Extensions.ExamineSerchResultExtensions.ToIPublishedContent(SearchResult result) in d:\_PROJECTS\Personal\uHelpsy - Library\uHelpsy\Source\uHelpsy.Web\Extensions\ExamineSearchResultExtensions.cs:riga 23

in uBlogsy.BusinessLogic.PostService.GetNextPost(IPublishedContent current, String tag, String label, String author, String searchTerm, String commenter, String year, String month, String day) in d:\_PROJECTS\Personal\uBlogsy\uBlogsy MVC\Source\uBlogsy.BusinessLogic\PostService.cs:riga 231

in ASP._Page_Views_uBlogsyPost_cshtml.Execute()

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Biagio Paruolo 1618 posts 1910 karma points c-trib

Mar 05, 2014 @ 16:58

0

Try to remove umbraco.config and all index files under TEMP\Examine\<folders>

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