JIRA upgrade episode

Old Version: Professional Edition, version: 3.0.3-#75
New Version: Professional Edition, version: 3.12.3-#302

After the backup data to XML file, restore data from XML, error:
Failed to import data: Error in Action: COM. Atlassian. Jira. Action. admin. dataimport @ 1ddcd5f, result: Error error

Parsing export file. Your export file is invalid. This may be due to a CDATA bug in older versions of Jira

(Http://jira.atlassian.com/browse/JRA-4980). Exception is org. xml. Sax. saxparseexception: the element type "body"

Must be terminated by the matching end-tag "</body> ".

It is found that this is a bug in the old version of Jira. Find the Fix Pack, update it to the server, and back up and export it again. The recovery is successful.

Fixpack:

Http://repository.atlassian.com/ofbcore/jars/ofbcore-entity-2.1.1-atlassian-06122004.jar

And copy to your WEB-INF/lib/directory (Atlassian-Jira/WEB-INF/lib/in Jira standalone; webapp/WEB-INF/lib/in Jira

War/webapp). You must also delete the old WEB-INF/lib/ofbcore-entity-2.1.1.jar file, which this replaces.