How to fix the error ORA-00382: string not a valid block size, valid range [string..string]?

In this post, you’ll learn more about the Oracle ErrorORA-00382: string not a valid block size, valid range [string..string] with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-00382: string not a valid block size, valid range [string..string]

Reason for the Error ORA-00382: string not a valid block size, valid range [string..string]

User specified a value for db_nk_cache_size where n is one of {2, 4, 8, 16, 32}, but nk is not a valid block size for this platform.

How to fix the Error ORA-00382: string not a valid block size, valid range [string..string] ?

You can fix this error in Oracle by following the below steps

Remove corresponding parameter from the “init.ora” file and restart the instance.