ORA-08102: index key not found

During the index rebuild process, if some of the blocks belonging to the index are on a corrupted datafile, you receive the error “ORA-08102: index key not found, obj # XXXXX, file X, block XXXX (2)”. To resolve the error, the relevant index must be moved to a different tablespace, or dropped and recreated.

The error is as follows.

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