Facing Error in loading page

[selva vignesh]

Hi team,
I have configured one Build action and later time added one more Build action class and made a old class as pojo class.
Now, i am facing 

<st:include> No page found 'sidepanel.jelly' for class io.jenkins.plugins.sample.BuildAction Exception.

Even i have configured correctly

can anyone let me know how to fix this issue

index.jelly

<j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" xmlns:l="/lib/layout">
    <l:layout>
        <st:include it="${it.build}" page="sidepanel.jelly"/>
        <l:main-panel>
            <h1>${it.displayName}</h1>
            <h2>Build #${it.buildNumber}'s Output: ${it.message}</h2>
            Build Start Time : ${it.StartTime}
           <j:set var="actionDone" value="${it.getDetails()}"/>
                       <j:forEach var="action" items="${actionDone}">
                               <p>${action}</p>
                       </j:forEach>
        </l:main-panel>
    </l:layout>
</j:jelly>