mysql_upgrade: (non fatal) [ERROR] 1728: Cannot load from mysql.proc. The table is probably corrupted (no replies)

Hello,

I upgraded my mysql database from 5.6 to 5.7. When i tried to run the mysql_upgrade command. It is giving following error and i couldnt fetch tables from mysql workbench.

mysql_upgrade: (non fatal) [ERROR] 1728: Cannot load from mysql.proc. The table is probably corrupted

Thanks,
Manoj