Message RQP-DEF-05432,RQP-DEF-0543 ... I don't understand

[jive]

Hi,
I got problem understanding that concept. I have first the the RQP-DEF-0542 message, so I change the governor and unchecked "Allow enhanced model portability at run time". I think when I do that they will take the metadata from the model. After doing that I have RQP-DEF-0543 , which mean "Metadata will be retrieved from the database, because a simple DB query subject definition with matching metadata does not exist" , and I have the connector name after that phrase. If we import the first time the information and build our model with an other connector and change it after the initial set up his this is the result of that action. Or simply can someone give me example to help me understand.
Thanks in advance for your time.