qmake2cmake doesn't convert the variable definition

I executed 

qmake2cmake ./ghQmlDemo4115.pro --min-qt-version 6.4

and CMakeLists.txt was generated.

However, when I compiled the app, it said it couldn't find some headers.

I checked the CMakeLists.txt and found out that the variable defined and used for path in .pro was not defined in CMakeLists.txt and therefore not used in the path, which leads to the wrong include path in CMakeLists.txt and the app didn't build.