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I have been looking around and it looks like there are a few causes to this. I saw another post that says it is a license issue. I am pretty sure my license file is fine though.

I have installed DD4T and created the items on need on the CM side. I followed this overview. However when I load my page I always get the error "Object reference not set to an instance of an object" I have verified my page is published out to my broker database in the page table and verified the publication ID matches what my app has.

I have seen this error in the event log from time to time but it does not corispond to each request I make.

DCOM was unable to communicate with the computer DEP-DB-CMS-DEV using any of the configured protocols; requested by PID 38c4 (C:\Program Files (x86)\Microsoft SQL Server\110\Tools\Binn\ManagementStudio\Ssms.exe).

Any ideas on why I can't get this call to work? Here are some things I have done:

  • Copied the config folder from the HttpUpload deployer to make sure I have right config settings. I made sure to update the license path in the cd_storage config to my local license file path.
  • Validated my publication ID
  • Validated that my page shows up in the broker DB link to the above publication ID.
  • Changing DD4T DefaultPage from "index.aspx" to "/index.aspx" ... database record in the Page table has "/index.aspx"

App exception

Exception information: Exception type: NullReferenceException Exception message: Object reference not set to an instance of an object. at DD4T.Providers.SDLTridion2013.TridionPageProvider.GetContentByUrl(String Url) at DD4T.Factories.PageFactory.TryFindPage(String url, IPage& page) at DD4T.Mvc.Controllers.TridionControllerBase.GetModelForPage(String PageId) at DD4T.Mvc.Controllers.TridionControllerBase.Page(String pageId) at ContentDelivery.Web.Controllers.PageController.Page(String pageId

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  • any other info in event viewer logs?
    – Raj Kumar
    Jun 13, 2014 at 21:09
  • nope. those logs seems odd but since they don't show up every time I make a request I am not sure they are the root cause.
    – ToddB
    Jun 13, 2014 at 21:15
  • also check your CD logs, log path is in logback.xml
    – Raj Kumar
    Jun 13, 2014 at 21:17
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    @ToddB That means it can't find a Tridion Page for the specified path, not that it can't find a view - the view is selected based on the Page Metadata. Compare the path you're entering to the path of the Page in the broker.
    – Ant P
    Jun 14, 2014 at 9:16
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    @ToddB An IIS Reset is needed to reflect the config changes. IIS holds onto the JAR and Config files and doesn't reload them. Page not found is a great sign! Look in your Broker Pages Table and at the URL column. This is your missing link.
    – robrtc
    Jun 16, 2014 at 14:31

1 Answer 1

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Please make sure if you have copied "netrtsn.dll" and "xmogrt.dll" in the bin folder. You should be able to get these DLLs from CD bin folder.

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