I have done exactly this:http://confluence.jetbrains.com/display/YTHB/Import+from+Another+YouTrack+Server
using the root account details for both youtrack sites - however the attachments are not being copied across with the issues. Everything else is and looks good. REST is enabled on both sites.
The error is:
Can't create attachment
HTTP CODE: 400
REASON: <?xml version ="1.0" encoding = "UTF-8" standalone = "yes"?><importReport><item imported = "false"><error fieldname ="authorLogin" value = "myrootdetails">Value is unknown</error></item></importReport>
Please can you help with this?