c++ project generating project

im pretty new to ue4 and i want to start a new code project but when i start it there will be a error with comment:
"faled to generate code project file for (here is my directori/myproject4.uproject)
can anyone help me about this?

and now i installed vs 2013 and still i get that error. but there is still a big question. i know that in blueprint project and code project we can use both and on making blueprint project proggram gives me no error but even in blueprint project in main folder i have *.uproject folder that i think i can run my code on it but really what is the problem?