CDISP0750E

The attribute name attribute of the type type is found, but the type type is expected.

The attribute is a member of the first type, but the SPL compiler expects the attribute to be a member of the second type. This situation can occur when a parameter attribute is passed to a composite operator, and the use of the parameter does not resolve to the same type as the input port of the invocation.
Ensure that the tuple type of the input port where the parameter is used in the composite is the same tuple type as the input port where the composite is invoked.