The columns in table '<0s>' do not match an existing primary key or UNIQUE constraint.

Microsoft Office Access 2003

The columns in table '<0s>' do not match an existing primary key or UNIQUE constraint.

The columns on the primary key side of a foreign key relationship must participate in either a primary key or a unique constraint. After setting up a primary key or a unique constraint for one of the tables you’ve selected, you can then define other relationships for that table.

For more information, see Create a Unique Constraint and Define a Primary Key Constraint.