DataReader.GetFieldType returned null

Question

In my db table Layout, there\'s one column whose type is hierarchyid (column index=4). When trying to set-up new environment (a virtual web-server, created from

Answer 1

I tried to resolve this issue by adding the Microsoft.SqlServer.Types NuGet package to my project, but that alone did not help. I also had to add the following to the element of my project's App.config:

  
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