Error when run a dynamic page

Question

I am using portal 10g. I have a simple test dynamic page to output the page_url:
<oracle>
Declare
myPortlet_rec portal.wwpro_api_provider.portlet_runtime_record;
myUrl varchar2(32767);
Begin
portal.wwpro_api_provider.show_portlet(myPortlet_rec);
myUrl :=myPortlet_rec.page_url;
htp.p(myUrl);
End;
</oracle>
It compiles successfuly in portal, but when I click 'run as portlet' link, I got this error:
Error: Internal error (WWC-00006)
User-Defined Exception (WWV-11230)
The preference path does not exist: ORACLE.WEBVIEW.PARAMETERS.1631499120 (WWC-51000)
The preference path does not exist: ORACLE.WEBVIEW.PARAMETERS.1631499120 (WWC-51000)
The preference path does not exist: ORACLE.WEBVIEW.PARAMETERS.1631499120 (WWC-51000)
If I click 'Run', I got 'HTTP 404 not found' page.
Can anyone tell me what is wrong here? Thanks!

Answer 1

Thanks for the reply, I will try to clarify things a bit. If I attempt to create a LOV (Shared Component), I get the first error. If I type in the LOV query directly into my field definition's LOV (as opposed to using a Named LOV), I get the report error when I run the page. The 'F_FORMAT_NAME' is a database function NOT in the ASMGR schema, but it has a public synonym...looking at the grants to it, that might be a problem (ASMGR doesn't have execute on it, nor does public), however, when I first started attempting this LOV creation, the call to the function wasn't there.... I will have to re-try it. In the meantime, I got around the problem rather inelegantly by creating a view in the ASMGR schema that pointed to the fields I needed for the LOV.