when trying to add theme 24 to application 16999 on apex.oracle.com.
ORA-00001: unique constraint (APEX_040200.WWV_FLOW_PAGE_PLUG_IDX2) violated
damorgan wrote:No, it wasn't—or if it was, this is not reflected in the UI: theme 24 is not listed in Shared Components > Themes, and is still available for selection in the Identify Theme step of the wizard, which it would not be were it properly installed.
It appears that theme 24 was previously added.
Specific information as to version number, what you have done previously, and specifically how you are doing whatever you are doing might help.As stated, this is occurring on apex.oracle.com so the version is implied. I suspect this is connected with the APEX 4.2 upgrade applied in Q4 last year (although I have been apex.oracle.com: Performance problems/no response when switching themes). All I'm doing is using the standard Create Theme wizard.