null reference exception after install

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Simon Dingley 1470 posts 3427 karma points c-trib

Mar 17, 2012 @ 13:03

Digibiz Advanced Media Picker

I'm a fan already of DAMP and have used it before however my recent installation keeps throwing the following exception:

[NullReferenceException: Object reference not set to an instance of an object.]
   ASP.umbraco_plugins_digibizadvancedmediapicker_selectmediaitem_aspx.__RenderContentPage(HtmlTextWriter __w, Control parameterContainer) +84
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +109
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +8
   System.Web.UI.Control.Render(HtmlTextWriter writer) +10
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +100
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +208
   System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) +173
   System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer) +31
   System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output) +53
   umbraco.presentation.urlRewriter.FormRewriterControlAdapter.Render(HtmlTextWriter writer) +49
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +8996699
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +100
   System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer) +40
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +208
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +8
   System.Web.UI.Control.Render(HtmlTextWriter writer) +10
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +100
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +208
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +8
   System.Web.UI.Page.Render(HtmlTextWriter writer) +29
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +100
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3060

I'm sure I'm just overlooking something but can someone spot the obvious mistake?

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Simon Dingley 1470 posts 3427 karma points c-trib

Mar 20, 2012 @ 08:51

0

The exception seems to be thrown during the instantiation of DigibizPickerView which is throwing an inner exception of "Sequence contains no elements".

Will post more if I make any further progress!

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Jeroen Breuer 4908 posts 12265 karma points MVP 4x admin c-trib

Mar 20, 2012 @ 09:20

0

I haven't seen this error before. I think it's best if you debug the source to see what might be the problem.

Jeroen

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Simon Dingley 1470 posts 3427 karma points c-trib

Mar 20, 2012 @ 09:59

0

That's what I'm trying to do but with little success at the moment. I've discovered the site is running 4.7.0 and so I am upgrading to 4.7.1 to see if that makes any difference.

Thanks, Simon

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Simon Dingley 1470 posts 3427 karma points c-trib

Mar 20, 2012 @ 10:06

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And an upgrade to 4.7.1 doesn't seem to help at all either. I'm going to have to fall back to a standard Media Picker for now as I need to get this change out. Hopefully I will have time to return to this at a later date.

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Jeroen Breuer 4908 posts 12265 karma points MVP 4x admin c-trib

Apr 02, 2012 @ 17:56

0

Did you find out what the problem was?

Jeroen

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Simon Dingley 1470 posts 3427 karma points c-trib

Apr 02, 2012 @ 18:03

0

Unfortunately due to time and current workload I have not had a chance to return to this yet and had to take the easy option and leave DAMP out for now I'm afraid.

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