ATL related build error in x64 configuration

[Jy_13]

Hi,

I'm working on this legacy product, and it builds fine in 32 bit using VS 2017. However, it the x64 configuration, it gives the following error:

Error C2259 'ATL::CComContainedObject<contained>': cannot instantiate abstract class
with
[
contained=OLEDBCommand
]
CComContainedObject<contained> m_contained;

c:\program files (x86)\microsoft visual studio\2017\professional\vc\tools\msvc\14.16.27023\atlmfc\include\atlcom.h 3582

It does give any further information as to which class' object it is trying to instantiate. Appreciate any clues on how to deal with this error.

TIA,

Jy

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