Yes , I have created a copy of that model and while saving "ll get the same error message. Although there are no objects missing when I restart that model.
I wrote a report which give me the ID of all the objects and connection , but I'm not able to get the value in the report which is coming in the error message.
Found out the reason for the error message which came while saving.
The error message was coming because many of the objects/models were locked and because of that it was not possible to save those objects hence error message.
To resolve the issue , the objects needs to be unlocked first and then save the model.
