Hi,
I am currently testing the upgrade from Apex 4.2 to Apex 5.1.3. I am using the packaged applicatioin "APEX application archive" in APEX 4.2 in locked mode. I have exported and imported the schema with data into an Oracle 12cR2 database with Oracle APEX 5.1.3.
I tried to install the new version of the APEX Application archive but following error ocurred (because of the existing schema).

It is possible to unlock the Application Archive in 4.2 and export/import this application. But then I cannot upgrade to the new version of the APEX application archive with the Universal Scheme.
So what is the right way to do this? Is there a way to ignore this error message or toget an upgrade option?
Thank you very much for you answers in advance.
Best regards,
Reinhard