The name "xxx" does not exist in the namespace "http://schemas.telerik.com/2008/xaml/presentation"

2 posts, 0 answers
  1. CONTENTShare
    CONTENTShare avatar
    5 posts
    Member since:
    Jun 2013

    Posted 18 May 2018 Link to this post

    Hello,

    I am trying to update controls for one application from 2013 to latest 2018.2.515.40 version. No updates of controls were doen in meantime. Implicit styles No XAML approach is used, so should be down to "just" switching to new dll files. Solution has many projects, but Telerik is manily in two projects: one where some "basic controls" are defined in custom XAML files but referencing Telerik controls and styles, and oneStartUp project that inherits previous one and where all the Views are defined. 

     

    After updating to new DLLs (and adding including some that were not necessary before, but I suppose there was some restructure), we get "name does not exist in the namespace schemas.telerik.com/2008..." all around. I already searched and this usually happens if versions are not the same, but I already triple checked it. Also I found this and checked .csproj files and checked each dll file like it is said in that topic, deleted bin folders and restarted Visual Studio. Problem still remains.

     

    I am using DLLs version .40 since in solution not all projects are .NET 4.5, so here and there we might use Telerik.Windows.Controls, so everywhere are used 4.0 libraries. I expect this is not a problem since it should work in both 4.5 and 4.0 projects, correct? Also, should I use approach without versions in csproj, only with HintPath? All DLLs come from same latest version and all are 4.0 so I'm out of ideas. Solution builds and application can run, but nothing from Telerik is displayed.

    Help, please.

  2. Martin Ivanov
    Admin
    Martin Ivanov avatar
    2425 posts

    Posted 21 May 2018 Link to this post

    Hello Nikola,

    This error could be caused by various of different reasons. This is why I would recommend you to open a new ticket from your telerik.com account and try isolating the issue in a new project(s) with the Telerik controls only, and then send it over. This will allow us to test it locally and investigate what happens.

    As a side note, yes, the .NET 4.0 dlls will work in a .NET 4.5 project.

    Regards,
    Martin Ivanov
    Progress Telerik
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