Probably missing something simple, source of ERROR 1146 (42S02): Table doesn't exist error

Question

Looking to import a mysqldump .sql file into a new db.

Have tried both via command line and directly within a mysql session.

The following call gives the assocaited error:

chris@chris-X1C6:/media/chris/T7$ sudo mysql -h 127.0.0.1 -u admin -p -D op < op_prices.sql
Enter password:
ERROR 1030 (HY000) at line 25: Got error 168 - 'Unknown (generic) error from engine' from storage engine

Getting the following after trying to do the import within a MySQL session:

mysql> use op; 
Database changed 
mysql> source /media/chris/T7/op_prices.sql 
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
ERROR 1030 (HY000): Got error 168 - 'Unknown (generic) error from engine' from storage engine Query OK, 0 rows affected (0.00 sec)
ERROR 1146 (42S02): Table 'op.prices' doesn't exist 
ERROR 1146 (42S02): Table 'op.prices' doesn't exist 
ERROR 1146 (42S02): Table 'op.prices' doesn't exist 
ERROR 1146 (42S02): Table 'op.prices' doesn't exist 

op.prices is the table present in the .sql dump. Not sure what would be giving this/these errors though.

The dump finished successfully and is close to half a TB in size, so don't think it's likely to have been corrupted. Any thoughts are much appreciated.

Best regards, Chris