Oracle Solution for Error ora-01258

ORA-01258: unable to delete temporary file string

What triggered the Error:

A DROP TABLESPACE INCLUDING CONTENTS AND DATAFILES or ALTER DATABASE TEMPFILE DROP INCLUDING DATAFILES operation was not able to delete a temporary file in the database.

What should we do to fix it:

Subsequent errors describe the operating system error that prevented the file deletion. Fix the problem, if possible, and manually purge the file.