SOLVED Unable to compile math.framework

It is possible that I am alone in the problem: after I upgraded my Visual Studio 2019 to 16.9.4 version, the math.framework modules from r21 to s24 SDK could not be compiled. what should I do?
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The error of the console is6>D:\C4DSDK\sdk_s22\frameworks\core.framework\source\maxon\utilities\resultbase.h(571,4): error C2079: “maxon::ResultBase<RESULT_TYPE>::_value”Use undefined class“maxon::BlendAnimationRef”
Thinks,
AiMiDi

hi,

have a look at this thread please.

Cheers,
Manuel

hi,

have a look at this thread please.

Cheers,
Manuel