WebForms UnobtrusiveValidationMode requires a ScriptResourceMapping for 'jquery'.

When you develop a web application it may be a chance you can get below error:
 
WebForms UnobtrusiveValidationMode requires a ScriptResourceMapping for 'jquery'. Please add a ScriptResourceMapping named jquery(case-sensitive).
 
 
 
To overcome above error make sure you have below entry in your web.config file:
 
<configuration>
   <appSettings>
      <add key="ValidationSettings:UnobtrusiveValidationMode" value="None" />
   </appSettings>
</configuration>