Qt6 MSVC: examples fails to build, "msvc2019_64\include\QtCore/qmetatype.h(2280,45): error C2187: syntax error: ';'"

Multiple examples fails to build due same error:

<QtSDK>\6.0.0\msvc2019_64\include\QtCore/qmetatype.h(2280,45): error C2187: syntax error: ';' was unexpected here [<QtSDK>\Examples\Qt-6.0.0\assistant\simpletextviewer\simpletextviewer.vcxproj]

assistant\simpletextviewer used as an example, full build log attached.

Build is done in command line, Cmake and Ninja added to path from <QtSDK>/Tools.

cmake CMakeLists.txt

cmake --build .

Failing examples:

corelib\ipc\localfortuneclient
corelib\ipc\localfortuneserver
corelib\mimetypes\mimetypebrowser
corelib\threads\mandelbrot
corelib\threads\queuedcustomtype

and many more