This is more of a propel question, but I'll see if I can help you out.
My best guess is that you didn't define the "Name" foreign key in
your schema.xml, and thus there is probably not a method named
"doSelectJoinName".
Check in classes/<project>/om/BaseNamePeer.php and see if the method
is actually there to confirm.
If not, check your schema file and make sure that the "Name"
relationship is set up. "Name" is a pretty generic name for a table,
so it's possible that there is some other conflict going on...
Alan