AjaxLoadingPanel shows unknown server tag

2 posts, 0 answers
  1. ashishpandey21jan
    ashishpandey21jan avatar
    9 posts
    Member since:
    Sep 2014

    Posted 15 Oct 2015 Link to this post

    <telerik:AjaxLoadingPanel ID="AjaxLoadingPanel1"   runat="server" Height="75px" Width="75px">

            <img alt="loading..." src="../RadControls/Ajax/Skins/Default/loading6.gif" />



    gives error:Error16 Unknown server tag 'telerik:AjaxLoadingPanel'. when we updating telerik dll 2012 to 2015

  2. Viktor Tachev
    Viktor Tachev avatar
    1768 posts

    Posted 19 Oct 2015 Link to this post


    Would you ensure that the Telerik.Web.UI.dll assembly is added to the bin folder of your application or website and that it is referenced correctly? Also ensure that the assembly is targeting the same .NET version as the application.

    If you would like additional information on the error you would find the following article interesting:

    Viktor Tachev
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