What does "The object .... is being referenced by 1 objects(s) before its creation" mean?

[sggreener]

I imported an existing database into pgModeler then applied the fix to style the objects using an existing model as I have done a few time.

Now, when I migrate, and then validate the resulting model I get the following.

I have no idea what the error message means.

The 9 error messages relate to the inheriting children of a parent table if that helps.

Simon