Unable to start Ingres and the following error is received: Error 183: Cannot create a file when that file already exists. WCC cannot be used due to this error.
Solution
Rename the following file: C:\Program Files\CA\SC\Ingres[EI]\ingres\files\symbol.tbl
Rename the existing C:\Program Files\CA\SC\Ingres[EI]\ingres\files\symbol.bak file to symbol.tbl
Kill process 'iigcn.exe' if it is still running
Start the Ingres Intelligent Database [EI] service
A reboot may be required to ensure changes take full effect