Error when click on Asset Title in My Workflow Task portlet.

[Mahendra Mahakle，修改在12 年前。]

Hi Guys,
I have created custom assets in our project called "Idea Submission" and I have applied workflow on it.Now it is working fine for assigning task to me or assigning task to other guy to Approve Or Reject it.
Please see following screen..


But I am facing a problem when I click on Review,Create rich user Experience ,Idea Submission,Last Activity Date,Due Date tab as shown in above
screen it gives Exception like...........

12:49:01,329 ERROR [IncludeTag:231] Current URL /group/control_panel/manage?p_p_id=153&p_p_lifecycle=0&p_p_state=maximized&p_p_mode=view&doAsGroupId=19043&refererPlid=19053&_153_st
ruts_action=%2Fmy_workflow_tasks%2Fedit_workflow_task&_153_redirect=http%3A%2F%2Flocalhost%3A8080%2Fgroup%2Fcontrol_panel%2Fmanage%3Fp_p_id%3D153%26p_p_lifecycle%3D0%26p_p_state%3D
maximized%26p_p_mode%3Dview%26doAsGroupId%3D19043%26refererPlid%3D19053%26_153_refererPlid%3D19053%26_153_doAsGroupId%3D19043&_153_workflowTaskId=19610 generates exception: java.la
ng.NullPointerException
12:49:01,369 ERROR [IncludeTag:154] java.lang.NullPointerException
at org.apache.jsp.html.portlet.workflow_005ftasks.edit_005fworkflow_005ftask_jsp._jspService(edit_005fworkflow_005ftask_jsp.java:977)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488)
at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:175)
at com.liferay.taglib.util.IncludeTag._doInclude(IncludeTag.java:223)
at com.liferay.taglib.util.IncludeTag.doEndTag(IncludeTag.java:58)
at org.apache.jsp.html.common.themes.portlet_jsp._jspService(portlet_jsp.java:4442)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)[

If any one have any solution please help me.
Thanks
Mahendra.

[Mahesh Narke，修改在10 年前。]

hi

did you find any solution? i am facing the same problem