Relationship Problem- Same Data Type?

[HServ]

I am trying to create a One-To-Many relationship and enforce referential
integrity but I get the error message that the "Relationships must be the
same number of fields with the same data types." I don't understand because
they ARE the same number of fields and data type. One is an autonumber and
one is just a number but I can't change that now! What is going on?
Thank you

 

[Rick Brandt]

I am trying to create a One-To-Many relationship and enforce
referential integrity but I get the error message that the
"Relationships must be the same number of fields with the same data
types." I don't understand because they ARE the same number of fields
and data type. One is an autonumber and one is just a number but I
can't change that now! What is going on?
Thank you

What "size" of number? It needs to be LongInteger.

 

[HServ]

They are both Long Integer. The only difference is that one is an
autom\number and one is only a number.