ORA-32010: cannot find entry to delete in SPFILE

Error
Reset the parameter in Oracle Database, we are getting the following error during resetting.

SQL> ALTER SYSTEM RESET "_optimizer_enable_extended_stats";
ALTER SYSTEM RESET "_optimizer_enable_extended_stats"
*
ERROR at line 1:
ORA-32010: cannot find entry to delete in SPFILE


Cause:
Reset command delete the parameter from the SPFILE. So parameter is not available in SPFILE.

Solution
Check the parameter is present or not by creating PFILE.

Create PFILE='E:\init.txt' from spfile;