Delphi Compiler Error
E2229 A dispinterface type requires an interface identification
Reason for the Error & Solution
When using dispinterface types, you must always be sure to include a GUID specification for them.
program Produce;
type
IBase = dispinterface
end;
begin
end.
In the example shown here, the dispinterface type does not include a GUID specification, and thus causes the compiler to emit an error.
program Solve;
type
IBase = dispinterface
['{00000000-0000-0000-0000-000000000000}']
end;
begin
end.
Ensuring that each dispinterface has a GUID associated with it will cause this error to go away.
