Hi,
I could create schema with out error. Could you check ur send/receive port? could u check the connection? where is ur package located?
I put the package under my schema. I created a send port using my user id and pwed. when i run add genearate items, i use the send port i created as port option. then i selected the package under my schema. I think ur package not saved under Nativesql. i think it is under ur schema.
could u double check it?