导入数据包问题

cognos 导入数据包时，报 执行块“removedeploymentOptionsUI”时出现例外。
org.dom4j.IllegalAddException : The node "org.dom4j.tree.DefaultElement@4fe2f6e [Element: <xts:block uri: http://developer.cognos.com/schemas/xts/ attributes: [org.dom4j.tree.DefaultAttribute@1b904c7f [Attribute: name id value "removedeploymentOptionsUI"], org.dom4j.tree.DefaultAttribute@1e8e33fc [Attribute: name processor value "XSLT"], org.dom4j.tree.DefaultAttribute@9f6f510 [Attribute: name type value "exec"], org.dom4j.tree.DefaultAttribute@3452f28c [Attribute: name dependency value "setSession processArchiveOptions getPackagesInContent getDeploymentObject resolveFirstWizardPage"], org.dom4j.tree.DefaultAttribute@31b1e02a [Attribute: name mandatory value "false"], org.dom4j.tree.DefaultAttribute@14f3fee3 [Attribute: name condition value ".[ ((/root/env/param[@name='m_class'] = 'importDeployment' and /root/env/param[@name='m_archiveChanged'] = 'true') or (/root/env/param[@name='m_class'] = 'exportDeployment' and /root/env/param[@name='m_entireContentStoreSelect']='false' and not(/root/env/param[@name='m_packagesInContent']) and /root/env/param[@name='m_deploymentOptionsUI'] and /root/env/param[@name='m_deploymentWizardPage'] = 'packages')) and not(/root/mode='addEntries') and not(/root/newEntries)]"]]/>]" could not be added to the branch "null" because: The Node already has an existing document: org.dom4j.tree.DefaultDocument@48507a58 [Document: name null]
 
请问各位大神该如何解决？