There are 7 JavaScript files served from xxx. They should be combined into as few files as possible. * http://xxx/Livetest/Driver/Account/js.axd?path=%2fLiveTest%2fWebResource.axd%3fd%3dl8R... * http://xxx/LiveTest/ScriptResource.axd?d=0ZrPnTV1EByijxiKsA2fRsokHTnT5abUhTh-eqnUZcY9h... * http://xxx/LiveTest/ScriptResource.axd?d=-vbWLkkp54EvIGDjA1OjUBEhpOAOVOfsbkxLkntwMNJ9b... * http://xxx/LiveTest/ScriptResource.axd?d=-vbWLkkp54EvIGDjA1OjUBEhpOAOVOfsbkxLkntwMNKoK... * http://xxx/LiveTest/ScriptResource.axd?d=-vbWLkkp54EvIGDjA1OjUBEhpOAOVOfsbkxLkntwMNK04... * http://xxx/LiveTest/ScriptResource.axd?d=-vbWLkkp54EvIGDjA1OjUBEhpOAOVOfsbkxLkntwMNK04... * http://xxx/LiveTest/ScriptResource.axd?d=kBL2OQlEZSsiGABLpunYZ_Wyu9ubNefWIaufIYH70_gea... i have already added combinging script <asp:ScriptManager ID="sm1" runat="server" > </asp:ScriptManager> <asp:ScriptManagerProxy ID="ScriptManagerProxy1" runat="server"> <CompositeScript> <Scripts> <asp:ScriptReference name="MicrosoftAjax.js" /> <asp:ScriptReference name="MicrosoftAjaxWebForms.js"/> <asp:ScriptReference name="Infragistics.Web.UI.Scripts.0_igControlMain.js" assembly="Infragistics35.Web.v9.2, Version=9.2.20092.1003, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb"/> <asp:ScriptReference name="Infragistics.Web.UI.Scripts.2_igCollections.js" assembly="Infragistics35.Web.v9.2, Version=9.2.20092.1003, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb"/> <asp:ScriptReference name="Infragistics.Web.UI.Scripts.3_igUIBehaviors.js" assembly="Infragistics35.Web.v9.2, Version=9.2.20092.1003, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb"/> <asp:ScriptReference name="Infragistics.Web.UI.Scripts.4_igEnums.js" assembly="Infragistics35.Web.v9.2, Version=9.2.20092.1003, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb"/> <asp:ScriptReference name="Infragistics.Web.UI.Scripts.5_igObjects.js" assembly="Infragistics35.Web.v9.2, Version=9.2.20092.1003, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb"/> <asp:ScriptReference name="Infragistics.Web.UI.Scripts.7_igClientStateManager.js" assembly="Infragistics35.Web.v9.2, Version=9.2.20092.1003, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb"/> </Scripts> </CompositeScript> </asp:ScriptManagerProxy> <asp:ScriptManagerProxy ID="ScriptManagerProxy2" runat="server"> <CompositeScript> <Scripts> <asp:ScriptReference name="Infragistics.Web.UI.Scripts.8_igCallback.js" assembly="Infragistics35.Web.v9.2, Version=9.2.20092.1003, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb"/> <asp:ScriptReference name="Infragistics.Web.UI.Scripts.9_igPropertyManagers.js" assembly="Infragistics35.Web.v9.2, Version=9.2.20092.1003, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb"/> <asp:ScriptReference name="Infragistics.Web.UI.SharedScripts.igAnimation.js" assembly="Infragistics35.Web.v9.2, Version=9.2.20092.1003, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb"/> <asp:ScriptReference name="Infragistics.Web.UI.EditorControls.WebTextEditor.js.igTextEditor.js" assembly="Infragistics35.Web.v9.2, Version=9.2.20092.1003, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb"/> <asp:ScriptReference name="Infragistics.Web.UI.EditorControls.WebMonthCalendar.js.igCalendar.js" assembly="Infragistics35.Web.v9.2, Version=9.2.20092.1003, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb"/> </Scripts> </CompositeScript> </asp:ScriptManagerProxy>