Multiple MAPI public folder trees were found

I am moving from 2003 to 2010.

I got all the way to the point where I need to move the public folders.
When I use the Public Folders Management Console in Exchange 2010, I get the following error.

"Multiple MAPI public folder trees were found"


I am trying to follow the instructions given by the Exchange Server Deployment Assistant .

There are the first few steps.
In the Console tree, click Toolbox.
2. In the Result pane, double-click Public Folder Management Console. The Public Folder Management Console appears.
3. In the public folder tree, click or expand Default Public Folders, and then select the parent public folder of the public folder that you want to move to Exchange 2010.

This is where I get the error.

I did the adsiedit as described here .

I can now see the public folders under the Exchange Administrative Group (FYDIBOHF23SPDLT) in the ESM on my 2003 server.
but 2010 server still give the error.

I run these commands

[PS] D:\Program Files\Microsoft\Exchange Server\V14\Scripts>Get-PublicFolder -Recurse | Format-List Name,Replicas

Name     : IPM_SUBTREE
Replicas : {}

[PS] D:\Program Files\Microsoft\Exchange Server\V14\Scripts>Get-PublicFolder \NON_IPM_SUBTREE | Format-List Name,Replica
s

Name     : NON_IPM_SUBTREE
Replicas : {}