nullreferenceexception during import

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Jeremias 53 posts 278 karma points

Dec 19, 2017 @ 07:44

Hi!

I work with the CMS Import 3.7.3. Now I tried to import some data as contet. After asign the fields from the CSV to the content properties, I get the following ErrorMessage:

 [NullReferenceException: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt.]
   Umbraco.Core.Persistence.<Query>d__74`1.MoveNext() +436
   CMSImportLibrary.Helpers.DataHelper.GetPreValueByDataTypeDefinitionId(Int32 , Int32 ) +134
   CMSImportLibrary.TypeExtensions.PropertyExtensions.GetPreValue(PropertyInfo pt, Int32 index) +133
   CMSImportLibrary.AdvancedSettingControls.Controls.MNTP.UComponentsMNTPControl.IsMedia(String documentAlias, String propertyAlias) +60
   CMSImportLibrary.AdvancedSettingControls.Controls.MNTP.UComponentsMNTPControl.OnInit(EventArgs e) +46
   System.Web.UI.Control.InitRecursive(Control namingContainer) +139
   System.Web.UI.Control.AddedControl(Control control, Int32 index) +185
   System.Web.UI.ControlCollection.Add(Control child) +86
   CMSImportLibrary.UIControls.ProperyMapping.PropertyMapping.() +124
   CMSImportLibrary.UIControls.ProperyMapping.PropertyMapping.OnLoad(EventArgs e) +32
   System.Web.UI.Control.LoadRecursive() +59
   System.Web.UI.Control.LoadRecursive() +131
   System.Web.UI.Control.LoadRecursive() +131
   System.Web.UI.Control.LoadRecursive() +131
   System.Web.UI.Control.LoadRecursive() +131
   System.Web.UI.Control.LoadRecursive() +131
   System.Web.UI.Control.LoadRecursive() +131
   System.Web.UI.Control.LoadRecursive() +131
   System.Web.UI.Control.LoadRecursive() +131
   System.Web.UI.Control.LoadRecursive() +131
   System.Web.UI.Control.LoadRecursive() +131
   System.Web.UI.Control.LoadRecursive() +131
   System.Web.UI.Control.LoadRecursive() +131
   System.Web.UI.Control.LoadRecursive() +131
   System.Web.UI.Control.LoadRecursive() +131
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +780

Here the ErrorMessage in english:

The object reference was not set to an object instance

Does anybody has an idea?

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Richard Soeteman 4045 posts 12898 karma points MVP 2x

Dec 19, 2017 @ 08:06

0

HI Looks like it can't read any pre values from the database. Are MNTP prevalues stored correctly? No errors when opening or save the datatype?

Best,

Richard

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Jeremias 53 posts 278 karma points

Dec 19, 2017 @ 08:21

0

Hi! I don't fill any of the MNTP with cms-import. Only Name, Title and Text (RTE). When I save the Page via Umbraco - everything is fine :)

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Richard Soeteman 4045 posts 12898 karma points MVP 2x

Dec 19, 2017 @ 08:33

0

Saving the page is something different than MNTP ;-) MNTP prevalues is throwing the error. SO must be something related to that.

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Jeremias 53 posts 278 karma points

Dec 20, 2017 @ 14:30

0

Now I have one question: Can it be, that it is, because I use the obsolete MultiNode Treepicker? Becase I used a Documenttype for the Import, which don't have this obsolete Picker. And it worked. Then I added a new MultiNode Treepicker and it also worked. But when I added a property with the old one, it crashed with the same error-message like you can see above! If the problem is the obsolete MNTP, is there a workaround?

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Richard Soeteman 4045 posts 12898 karma points MVP 2x

Dec 20, 2017 @ 14:51

0

That is strange since there is nothing changed in for the legacy picker. So I am affraid this is something that is changed in the latest umbraco version.

But why are you using legacy instead of the new pickers?

Best,

Richard

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Jeremias 53 posts 278 karma points

Jan 15, 2018 @ 08:02

100

Hi,

I went through all DataTypes and save them. Now the mostly "pre-value"-warning disappeared in the log. And the import worked!

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