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I am having this problem for a long time period. The problem is,

javax.portlet.PortletException: org.apache.jasper.JasperException: /view.jsp(35,3) PWC6117: File "/assignment/entry_search_columns.jspf" not found

I am trying to build the gradebook application by watching the tutorials from passport.liferay.com which is not available right now. I have created the entry_search_columns.jspf where I am having several errors saying that entry cannot be resolved and row cannot be resolved for these errors after bbuilding the whole application I am not able to solve the problem. Here is the code with these errors are below:
 

<%-- Generate assignment view URL. --%>
<portlet:renderURL var="viewAssignmentURL">
    <portlet:param name="mvcRenderCommandName"
        value="<%=MVCCommandNames.VIEW_ASSIGNMENT%>" />
    <portlet:param name="redirect" value="${currentURL}" />
    <portlet:param name="assignmentId" value="${entry.assignmentId}" />
</portlet:renderURL>
<c:choose>
    <%-- Descriptive (list) view --%>
    <c:when
        test='${assignmentsManagementToolbarDisplayContext.getDisplayStyle().equals("descriptive")}'>
        <%-- User --%>
        <liferay-ui:search-container-column-user showDetails="<%=false%>"
            userId="<%=entry.getUserId()%>" />
        <liferay-ui:search-container-column-text colspan="<%=2%>">
            <%
                String modifiedDateDescription = LanguageUtil.getTimeDescription(request,
                                    System.currentTimeMillis() - entry.getModifiedDate().getTime(), true);
            %>
            <h5 class="text-default">
                <liferay-ui:message
                    arguments="<%=new String[] { entry.getUserName(), modifiedDateDescription }%>"
                    key="x-modified-x-ago" />
            </h5>
            <h4>
                <aui:a href="${viewAssignmentURL}">
 ${entry.getTitle(locale)}
 </aui:a>
            </h4>
        </liferay-ui:search-container-column-text>
        <liferay-ui:search-container-column-jsp
            path="/assignment/entry_actions.jsp" />
    </c:when>
    <%-- Card view --%>
    <c:when
        test='${assignmentsManagementToolbarDisplayContext.getDisplayStyle().equals("icon")}'>
        <%
            row.setCssClass("lfr-asset-item");
        %>
        <liferay-ui:search-container-column-text>
            <%-- Vertical card. --%>
            <liferay-frontend:icon-vertical-card
                actionJsp="/assignment/entry_actions.jsp"
                actionJspServletContext="<%= application %>" icon="cards2"
                resultRow="${row}" title="${entry.getTitle(locale)}"
                url="${viewAssignmentURL}">
                <liferay-frontend:vertical-card-sticker-bottom>

                    <liferay-ui:user-portrait cssClass="sticker sticker-bottom"
                        userId="${entry.userId}" />
                </liferay-frontend:vertical-card-sticker-bottom>
                <liferay-frontend:vertical-card-footer>

                    <div class="truncate-text">

                        <%-- Strip HTML --%>

                        <%=HtmlUtil.stripHtml(entry.getDescription())%>
                    </div>
                </liferay-frontend:vertical-card-footer>
            </liferay-frontend:icon-vertical-card>
        </liferay-ui:search-container-column-text>
    </c:when>
    <%-- Table view --%>
    <c:otherwise>
        <liferay-ui:search-container-column-text href="${viewAssignmentURL}"
            name="title" value="<%= entry.getTitle(locale) %>" />
        <liferay-ui:search-container-column-user name="author"
            userId="${entry.userId}" />
        <liferay-ui:search-container-column-date name="create-date"
            property="createDate" />

        <liferay-ui:search-container-column-jsp name="actions"
            path="/assignment/entry_actions.jsp" />
    </c:otherwise>
</c:choose>

If you truly can help me please help.