There may be a quick solution to a portlet rendering problem.
The following information addresses common portlet rendering
problems.
- If you see the message This portlet is unavailable in
place of the portlet's content, the portlet generated an exception
when rendering its content. View the WebSphere® Portal log
files in the wp_profile_root/logs/webSphere_Portal directory
to determine what error occurred.
- When a standard portlet API's content should be displayed but
only the portlet title is visible, verify that the XDIME MIME type
is specified correctly in the portlet's portlet.xml file, JSPs, and Java™ source code. See the topic Requirements
and limitations for portlets that support XDIME markup for
more details.
- If you see the error message "SyndFeed Portlet / or any
Deployed Portlet does not appear on UA (Error 500)", you
need to edit the mwp properties (located in wp_profile_root/PortalServer/wp.mobile/wp.mobile.mwp/shared/app/config/mwp.properties)
and increase the poll value as follows: mwp.ppi.poll.times
= 30