Object already published in extension error for newly created objects

Hello Experts,

I have created a new page with id (50XXX) name "Posted inv XYZ" published the extension and it went well. Now I want to call that page using some action event so I did some modification in existing page using page extension and try to call the newly created page.

It is now throwing an error message that "An Application object of type Page with name "Posted inv.....ABC" already declared by extension Default Publisher" when I am trying to call that page using run object property.



1) Why it is throwing error even the page is newly created and id is not used anywhere else?

2) What will be the root cause? How can I fix this?

Any suggestion?

Thank you