Hello,

I have so many times now encountered what to me seems like a bug in the midl
compiler. Every now and then I get errors like this:

midl\oleaut32.dll : error MIDL2020 : error generating type library : LayOut
failed : IPDObjectLayerGroup

They can appear after I have added a property to an interface or added a new
object, I can often get rid of it by moving things around in the idl file,
moving things in or out of the library block, but I'd really like to know
what the real solution is..

thanks,

--
Sigurd Lerstad

which MIDL compiler version do you have? That from the MS SDK works fine for
me.

--

Hello Sigurd,

It may happens when you have an IDispatch-derived interface that has a
non-unique id for some method/property (usually when you derive it from
other IDispatch-derived interface)

Regards,
Vladimir Shcherbakov