Cannot add ANY telerik controls to my project

2 posts, 0 answers
  1. Martin
    Martin avatar
    35 posts
    Member since:
    Jun 2014

    Posted 16 Mar Link to this post


    I've had issues using Telerik for WinForms for a couple of weeks.

    I thought I had cured it all last week when I updated my Telerik Control Panel and then updated the suite of controls.

    The WinForms app I am working on will not allow me to add any Telerik controls to any Telerik form.

    I tried repairing the Telerik WinForms components which didn't work.

    I then uninstalled the Telerik WinForms components and re-installed them. Everything appears to install fine but my project will still not allow me to add controls (I can add RadForms though).

    Every time I try to add ANY control I get a messagebox saying: "Failed to created component Rad.... The error message follows"....

    Why is trying to re-add a reference to Telerik.WinControls.UI every time a new control is placed onto a form?

    I am running Windows7 64-Bit - The references in my app are:




    Paths to files are:

    C:\Program Files (x86)\Telerik\UI for WinForms Q1 2016\Bin40\Telerik.WinControls.dll

    C:\Program Files (x86)\Telerik\UI for WinForms Q1 2016\Bin40\Telerik.WinControls.UI.dll

    C:\Program Files (x86)\Telerik\UI for WinForms Q1 2016\Bin40\TelerikCommon.dll

    Which are the latest downloads via Telerik Control Panel this afternoon.


    Has anyone else experienced this issue? It's holding me up a lot.



  2. Dimitar
    Dimitar avatar
    1321 posts

    Posted 17 Mar Link to this post

    Hello Martin,

    Thank you for writing back.

    This message is shown when the references in your project are different than the references installed in the GAC. The following article shows how you can resolve this: Failed to create component design time exception. 

    Do not hesitate to contact us if you have other questions.

    Do you need help with upgrading your AJAX, WPF or WinForms project? Check the Telerik API Analyzer and share your thoughts.
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