Hello. I try to migrate from JIRA 5.0.4 to JIRA 6.0.8.
I try to do this throw XML backup/restore. But after restore on dasboard I always have a errors:
java.lang.IllegalArgumentException: groupName cannot be null or empty
I make some tests. I can succefully migrate from 5.0.4 to JIRA 5.2.5.
But when I try to upgrade to 5.2.6 I have the same error:
java.lang.IllegalArgumentException: groupName cannot be null or empty
I check database. Database do not contain any empty rows....
Need help.