If you delete and then add a portlet back into the staging server ReleaseBuilder will generate both a delete and a create tag in the outputfile.xml because the new webapp will have a different objectid. This sequence will cause the import of the outputfile.xml to fail because the delete will remove the portlet war file from the deployed/archive directory, therefore it will not be there when the create is processed.
To get around this inspect the outputfile.xml for any webapp deletes, pull them out of the xml file and process them separately. Then copy the deployed/archive directory to the target server and import the outputfile.xml to the target server.
To get around this inspect the outputfile.xml for any webapp deletes, pull them out of the xml file and process them separately. Then copy the deployed/archive directory to the target server and import the outputfile.xml to the target server.