Foreign key issue:ERROR 1005 (HY000): Can't create table (errno: 150)

Question

I\'m getting this error: ERROR 1005 (HY000): Can\'t create table (errno: 150); I know it has something to do with the foreign keys but I have checked to see if they

Answer 1

Solved:

Check to make sure Primary_Key and Foreign_Key are exact match with data types.

If one is signed another one unsigned, it will be failed.
Good practice is to make sure both are unsigned INT.