Problem importing executionworkitems

Hi all,

I'm trying to create a executionworkitem via xml file using the import utility. This is my xml file:

<xml>
<executionworkitem>
<authorid>IBFLOW</authorid>
<owner>IBFLOW</owner>
<title>EVO-CON-SOL-ACONTE_1 - </title>
<description>EVO-CON-SOL-ACONTE</description>
<testcase>
<testplan>
</executionworkitem>

The testplan and testcase have been create previously.

When I import this file to the default area (Quality Manager) there is no problem, but if I try to import this file to another area the RQM manager prompt this message all the time:

<xml><ns2><ns2>500</ns2><ns2>com.ibm.team.repository.common.TeamRepositoryException: Testcase is required for creating TER

at com.ibm.rqm.execution.service.internal.rest.ExecutionWorkItemRestService.postWorkItemEx(ExecutionWorkItemRestService.java:779)

at sun.reflect.GeneratedMethodAccessor412.invoke(Unknown Source)

at sunAccept:text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
Accept-Language:en-us,en;q=0.5
Accept-Encoding:gzip,deflate
Accept-Charset:ISO-8859-1,utf-8;q=0.7,*;q=0.7
Connection:keep-alive
Keep-Alive:900
Content-Type:text/xml

The testplan and testcase exist previus the import message.

Anybody knows what is happening?

Thanks to all