What does Unable to migrate link... as target WI has not been migrated mean?

[asafysf]

work item (10193) history not migrated successfully.
only small part of history migrated...
i get this message:
[INF] [ Task][Complete: 59/3802][sid: 10193|Rev: 83][tid: null | Work Item has 83 revisions and revision migration is set to true
[INF] Found 83 revisions to migrate on Work item:10193
[INF] Found 83 revisions to migrate on Work item:10193
.
.
.
[INF] [ Task][Complete: 59/3802][sid: 10193|Rev: 83][tid: null | Saved TargetWorkItem 60. Replayed revision 83 of 83
[INF] [ Task][Complete: 59/3802][sid: 10193|Rev: 83][tid: null | Links 1 | LinkMigrator:true
[INF] Migrating link for 10193 of type RelatedLink

[INF] [SKIP] Unable to migrate link where Link of type System.LinkTypes.Hierarchy-Reverse where wiSourceL=10193, wiSourceR=10192, wiTargetL=60, wiTargetR=10192 as target WI has not been migrated

any idea?

thanks!

[MrHinsh]

This is not an error. Errors are indicated by "ERR" and not "INF".

Links to work items that have not yet been migrated are skipped by design. They will be picked up when the other end of the link is migrated!

If the other end of the link is not in scope for the migration then the link will not be created.

For example...

1. if we have WorkItem1 and WorkItem2 that are related, we can't add the link when we create WorkItem1 because WorkItem2 does not yet exist. However when we process WorkItem2 the link back to WorkItem1 will be added at that time.
2. If WorkItem1 and WorkItem3 are related but WorkItem3 is not part of the query and is not migrated then the link from WorkItem3 to WorkItem1 is never added.

[asafysf]

Thanks.
If I'm understand the task is skipping because the other end of the link still not created.
So, if i run the migration tool again (after all tasks created) - this time the migration process of this skipping tasks will be succeeded?

Thanks!

[MrHinsh]

No, its automatic!