Constraint column lists must have the same number of columns

  Explanation:  The referencing column list and the referenced
  column list (explicit or implicit) must have the same number of
  columns.  This is not true for this referential constraint
  (FOREIGN KEY).

  User Action:  The number of columns for the REFERENCES (aka
  FOREIGN KEY) constraint must be the same as the referenced
  PRIMARY KEY, or the listed column list.