if you get this message after upgrading solutions enabler and trying to refresh the database via symcfg discover, then do the following:
# /usr/symcli/bin/symcfg discover
The SYMAPI database file cannot be used because it was written by a version of SYMAPI that is no longer supported
then do this:
# > /var/symapi/db/symapi_db.bin
That's the same as doing: cat /dev/null > /var/symapi/db/symapi_db.bin
Now you can do the symcfg discover without errors.