"A referral was returned from the server" error after upgrading QMM (Quest Migration Manager) (4264304)

After the upgrade, QMM shows the following error in the Open Project Wizard:

The following error occurred when extending ADAM schema.
Connecting to "ADAM2:389" Logging in as current user using SSPI Importing directory from file "C:\Program Files\Quest Software\Migration Manager\Common\BIN\Templates\cfg_schema_update_from_23.ldf" Loading entries. Add error on line 19: Referral The server side error is "A referral was returned from the server". 0 entries modified successfully.  An error has occurred in the program.

• The upgrade attempts to extend the schema
• The current ADAM instance is a part of a set and does not have a schema master role

Configure the Open Project Wizard to use the ADAM instance that was set up first and has the schema master role. Preferably, run QMM while logged with the same account that was used to install the original ADAM instance.

http://technet.microsoft.com/en-us/library/cc737057%28WS.10%29.aspx Do not seize the schema master role if you can transfer it instead or connect to the original schema master instance. Seizing the schema master role is a drastic step that should be considered only if the current operations master will never be available again.