When running a project for upgrading forms in PITSS.CON such as the project to replace the text_io function with webutil.client_text_io, if you happen to encounter the following error:
Search&Replace Error : ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to ‘SYNCRN’
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored.
There is a possibility that you might have encountered a bug with the Oracle Database especially if the database version is 11.2.0.4. It has also been noted that this error also happens when you attempt to delete a form from Module Handling. There are two solutions which can be done to fix the problem:
1. Apply Oracle Patch 17501296 to the Oracle Database (version 11.2.0.4 only). More information is provided in Oracle Support note 1586704.1.
2. Re-create the CTXSYS.SYNCRN procedure. The full SQL commands can be found in Oracle Support note 1586704.1.
After applying either one of the two solutions, the problem should no longer occur.
Source: Oracle Support note 1586704.1
