When trying to install the Sample Master Detail packaged application
on the new APEX.Oracle.com (running Application Express 4.2.0.00.22),
I'm getting an error.
After selecting it from the Packaged Applications page, and clicking the "Install Application" button
on the Application Builder/Packaged Applications/Sample Master Detail/Install screen,
I get the following:
Execution of the statement was unsuccessful. ORA-00001: unique constraint (APEX_040200.WWV_FLOW_MESSAGES_IDX1) violated
Thanks for raising this issue. The reported issue impacts the installation of the Sample Dialog and Sample Master Details packaged applications on this instance. We've logged bug 14749720 to track it, have identified a solution and hope to have it applied to this instance during the next instance update.
Apologies for any inconvenience this may have caused.