The type or namespace name 'Interop' does not exist in the namespace 'Microsoft.Office' error

 

I encountered the following error "The type or namespace name 'Interop' does not exist in the namespace 'Microsoft.Office' "

Found a working solution in one of the posts in this thread.

Here’s what I did:

1. Download the Microsoft Office 2010: Primary Interop Assemblies Redistributable at this link.
2. Installed the software; it would extract as a setup file named “o2010pia.msi”
3. Navigated to the “.NET” tab and added the reference “Microsoft.Office.Interop.Word”.  You can also manually add the reference under the

   <assemblies>

   tag

   <add assembly="Microsoft.Office.Interop.Word, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71E9BCE111E9429C"/>
      

If all goes well, it should get rid of the error message just as it did for me :)