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In Development
Last Updated: 08 Sep 2025 11:46 by ADMIN
Scheduled for 2025 Q4 (Nov)
SWAT
Created on: 05 Sep 2025 12:06
Category: ScriptManager
Type: Bug Report
0
Sys.InvalidOperationException: Type Telerik.Web.UI.RadChipFillMode has already been registered when using RadScriptManager with CDN and combined resources

When loading a page configured with RadScriptManager, RadStyleSheetManager, and RadWindowManager using CDN and combined resources, a JavaScript runtime error occurs:

        <telerik:RadScriptManager runat="server" ID="RadScriptManager1"
            AsyncPostBackTimeout="500" EnablePageMethods="true" 
            EnableScriptCombine="true" LoadScriptsBeforeUI="true"
            EnableCdn="true" CdnSettings-TelerikCdn="Enabled" CdnSettings-CombinedResource="Enabled"
            EnableScriptLocalization="true"
            EnableScriptGlobalization="true" />

        <telerik:RadStyleSheetManager ID="RadStyleSheetManager1"
            runat="server"
            EnableStyleSheetCombine="true"
            CdnSettings-TelerikCdn="Enabled" CdnSettings-CombinedResource="Enabled" />

        <telerik:RadWindowManager runat="server" ID="radWindowManager" Style="z-index: 7001;" RenderMode="Lightweight" />
        <telerik:RadWindow runat="server" ID="RadWindowRecommendUs" EnableViewState="false"
            Behaviors="Close" VisibleOnPageLoad="false"
            Width="300px" Height="590px"
            InitialBehaviors="Pin" VisibleStatusbar="false" VisibleTitlebar="true" Modal="true" ReloadOnShow="true" Overlay="false" />

        <telerik:RadWindow ID="RadWindowFacebookLoginCompleteDetails" runat="server"
            Behaviors="Reload" Modal="true" VisibleStatusbar="false"
            Width="720" Height="750"
            IconUrl="/SITE/COMPONENTS/facebook/fb_icon_16X16.png"
             />

        <telerik:RadAjaxLoadingPanel ID="LoadingPanel1" runat="server" Style="width: 100%; min-height: 250px;" />
Expected behavior:
The page should load without script registration conflicts.

Actual behavior:
The browser console shows an Uncaught Sys.InvalidOperationException, preventing proper execution of Telerik scripts.
Attached Files:
1 comment
ADMIN
Rumen
Posted on: 05 Sep 2025 12:10

Hi Ilan,

Thank you for reporting this error!

Please set the CdnSettings-CombinedResource="Disabled" for the RadScriptManager to temporary solve the error.

Regards,
Rumen
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