ORA-16024 - parameter string cannot be parsed

ORA-16024 - parameter string cannot be parsed

Cause - The value for the specified LOG_ARCHIVE_DEST_n (n = 1...5) parameter could not be parsed.
Common causes for this error are a misplaced equal sign, an unrecognized option, or an option that is missing a required value.

Action - Correct the value for the LOG_ARCHIVE_DEST_n parameter



Another Cause: 

I created pfile from spfile on production server for standby database.
Actually I didn't transfer pfile through FTP..I transfer file through copy/paste using NAS.
It transfered the pfile but when I start the database given above error...I googled checked all solution but it didn't work. I again transfer pfile through FTP then it resolved.