build and menuconfig errors ( CXX )

[DutchOrange]

So, I was trying to setup the ESP-MDF but when I tried "idf.py menuconfig" or "idf.py build" I get the error
It seems to only be a problem with the "Get-started" Example in the MDF and not any of the others (like blink) in the IDF.

Code: Select all

 Tell CMake where to find the compiler by setting either the environment
  variable "CXX" or the CMake cache entry CMAKE_CXX_COMPILER to the full path
  to the compiler, or to the compiler name if it is in the PATH.

I found the CXX folder but what next ?, And Can I run this on a windows machine ?
Thanks