I have an old instance of TFS 2015 that was installed with the DefaultCollection for the instance. We are moving to a 2017 TFS instance now that has a Named Instance so we can't just import the old TFS into the new because there is not DefaultInstance and there won't be one (according the to the SysOps that run the server). So I connected to the 2015 instance and ran a query to pull down all the work items and history into an excel database. However, when I try and connect to the 2017 instance to Publish I keep getting the error:
The reconnect operation failed because the team project collection you selected does not host the team that the document references. Verify that you selected the correct team project collection and try again.
So how can I pull the DefaultCollection from the old 2015 server and publish it to the new 2017 TFS server under a different Collection Name?
Thanks.