oracle error- ORA-00318: log string of thread string, expected file size string doesn't match string

ORA-00318:	log string of thread string, expected file size string doesn't match string
Cause:	On header read the file size indicated in the control file did not match the file size contained in the log file.
Action:	Restore correct file or reset logs.

oracle error- ORA-00317: file type string in header is not log file

ORA-00317:	file type string in header is not log file
Cause:	This is not an archived log file.
Action:	Find the correct file and try again.

ORA-00316:	log string of thread string, type string in header is not log file
Cause:	The online log is corrupted or is an old version.
Action:	Find and install correct version of log or reset logs.