Bitbucket Data Center Migration feature fails unexpectedly
Platform Notice: Data Center - This article applies to Atlassian products on the Data Center platform.
Note that this knowledge base article was created for the Data Center version of the product. Data Center knowledge base articles for non-Data Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Problem
On attempting to import an archive using the Data Center Migration feature, the import job fails as 'aborted' and the following exception can be found in the job messages:
Exception executing callback 'importEntry' on 'class com.atlassian.stash.internal.migration.InstanceDetailsImporter': 'Archive version '2' is not supported by this installation. Supported versions: 1'Cause
This error is caused when an archive taken from a later version of Bitbucket Data Center (7.0) is imported into a lower version of Bitbucket Data Center (<7.0)
Resolution
Currently there is no way to be able to restore a newer archive format into an instance that only uses lower archive formats. For those interested in consolidating two instances using these two different archive versions, it is recommended that the archive be imported into the Bitbucket 7.0 instance - which is backwards-compatible with the older archive versions used by earlier versions of Bitbucket.