Hi,
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When you tried to use MoveLookController Class, did you include the .h file of MoveLookController? If you didn't include it, it can't directly find MoveLookController. For example, I added the .h and .cpp files under Content folder in my project. So I include the .h file like below:
#include "Content/MoveLookController.h"
And after including the file, if you want to initialize the MoveLookController class:
MoveLookController^ m_controller = ref new MoveLookController(CoreWindow::GetForCurrentThread());
For more details about how to use MoveLookController class, you can refer to this official sample.
Thanks.