Please help iam getting error while loading web page

Server Error in '/KabojjaApp' Application.
WebForms UnobtrusiveValidationMode requires a ScriptResourceMapping for 'jquery'. Please add a ScriptResourceMapping named jquery(case-sensitive).
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidOperationException: WebForms UnobtrusiveValidationMode requires a ScriptResourceMapping for 'jquery'. Please add a ScriptResourceMapping named jquery(case-sensitive).

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[InvalidOperationException: WebForms UnobtrusiveValidationMode requires a ScriptResourceMapping for 'jquery'. Please add a ScriptResourceMapping named jquery(case-sensitive).]
   System.Web.UI.ClientScriptManager.EnsureJqueryRegistered() +3767260
   System.Web.UI.WebControls.BaseValidator.RegisterUnobtrusiveScript() +13
   System.Web.UI.WebControls.BaseValidator.OnPreRender(EventArgs e) +11752280
   System.Web.UI.Control.PreRenderRecursiveInternal() +110
   System.Web.UI.Control.PreRenderRecursiveInternal() +204
   System.Web.UI.Control.PreRenderRecursiveInternal() +204
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3618


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.2623.0