I was trying to compile a PL/SQL package and I got the following error:
ORA-04043: object SYS_PLSQL_77721_489_1 does not exist
After this, I can no longer recompile or drop the package.
Do you have any suggestions?
if you have access to support, this looks like bug #3744836. A similar bug is described here, related to pipelined functions and synonyms.