MySQL is not allowing ON UPDATE CURRENT_TIMESTAMP for a DATETIME field

Question

I have seen a lot of related questions, but I cannot place my finger on this specific question:

I have a MySQL table with both a TIMESTAMP (for when the field was create

Answer 1

Look my picture.

Set column Filed Type timestamp, Attributes on Update CURRENT_TIMESTAMP & Extra also . No problem after changed the filed type in Database, in my case . But not sure for all case.