Failed to create designer When we upgrade Teletrik New Version

10 posts, 1 answers
  1. Håkan
    Håkan avatar
    29 posts
    Member since:
    Apr 2012

    Posted 24 Sep 2012 Link to this post

    HI ALL

    Every time I update to a new version of Telerik Radcontrols we get the "Failed to create designer" view error back,before instal my version is 2012.2.607.40  and now 2012.2.912.40

    we have attached an image herewith


    devolpment team 
    (Rohan & Hasindu)
  2. Jayesh Goyani
    Jayesh Goyani avatar
    2732 posts
    Member since:
    May 2010

    Posted 24 Sep 2012 Link to this post

    Hello,

    you have already installed new version.

    Now you must have to update your project/website with new telerik version. (to resolve your issue)

    For how to update project please check attached files.

    Thanks,
    Jayesh Goyani
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  4. Håkan
    Håkan avatar
    29 posts
    Member since:
    Apr 2012

    Posted 25 Sep 2012 Link to this post

    Hi Goyani

    thank for the replay

    as you said we updated project after that , new error occurred.it says "The server tag 'telerik:RadComboBox' is ambiguous. Please modify the associated registration that is causing ambiguity and pick a new tag prefix." please find the attachment here with


    rohan




  5. Jayesh Goyani
    Jayesh Goyani avatar
    2732 posts
    Member since:
    May 2010

    Posted 25 Sep 2012 Link to this post

    Hello,

    If possible then can you please remove your telerik older version.

    NOTE : Before remove older version please take backup of telerik's DLL.

    Thanks,
    Jayesh Goyani
  6. Håkan
    Håkan avatar
    29 posts
    Member since:
    Apr 2012

    Posted 25 Sep 2012 Link to this post

    how to remove older version of DLL

    rohan
  7. Jayesh Goyani
    Jayesh Goyani avatar
    2732 posts
    Member since:
    May 2010

    Posted 26 Sep 2012 Link to this post

    Hello,

    Please uninstall older version from your system.

    Thanks,
    Jayesh
  8. Håkan
    Håkan avatar
    29 posts
    Member since:
    Apr 2012

    Posted 26 Sep 2012 Link to this post


    Hi Jayesh ,

    There is no place to uninstall  in add or remove program as u simply said, we did every thing that we feel
    1. we set the GAC version  in to the right version.
    2. We remove the GAC latest version
    3. we remove all telerik and re install telerik
    4. we remove telerik clear all telerik folder  and remove  .net as well 

    nothing yet works. Did you face the same situation before if yes help us. Please tell how to remove alder version that are already install we can't find a place except the GAC. 

    rohan





  9. Answer
    Kate
    Admin
    Kate avatar
    1898 posts

    Posted 26 Sep 2012 Link to this post

    Hi Håkan,

    Please take a look at the following post where it is explained in details the reason for the getting Error Creating Control exception in the design view of VS. I would suggest that you also try out the suggested workaround and see if this helps:
    http://blogs.telerik.com/blogs/posts/08-12-23/visual-studio-ldquo-error-creating-control-rdquo.aspx 

    Greetings,
    Kate
    the Telerik team
    If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed now.
  10. Håkan
    Håkan avatar
    29 posts
    Member since:
    Apr 2012

    Posted 26 Sep 2012 Link to this post


    Hi Kate ,

    Thanks it works, we found the solution too. 

    Development team
  11. Ibrahim
    Ibrahim avatar
    1 posts
    Member since:
    Jul 2016

    Posted 26 Jul in reply to Jayesh Goyani Link to this post

    Hi Goyani,

    Thanks a lot it works

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