cocos2d-x/tools/project-creator does not exist

cocos2d-x
2

i think that guide is obsolete, try this:
http://cocos2d-x.org/wiki/How_to_Start_A_New_Cocos2D-X_Game

What you want to do is use cocos console tool to create new project. Besides, there is a GUI tool to create project, check this out: