新建cocos2dx工程,用vs2013打开wp8 xaml工程后，生成时出现下列错误
错误 3 error C1083: 无法打开源文件:“....\cocos2d\cocos\2d\platform\wp8-xaml\cpp\Cocos2dRenderer.cpp”: No such file or directory F:\cyuyan\Cocos2d\HelloCpp\proj.wp8-xaml\HelloCppComponent\c1xx HelloCppComponent
错误 4 error C1083: 无法打开源文件:“....\cocos2d\cocos\2d\platform\wp8-xaml\cpp\Direct3DContentProvider.cpp”: No such file or directory F:\cyuyan\Cocos2d\HelloCpp\proj.wp8-xaml\HelloCppComponent\c1xx HelloCppComponent
错误 6 error C1083: 无法打开源文件:“....\cocos2d\cocos\2d\platform\wp8-xaml\cpp\Direct3DInterop.cpp”: No such file or directory F:\cyuyan\Cocos2d\HelloCpp\proj.wp8-xaml\HelloCppComponent\c1xx HelloCppComponent
错误 5 error C1083: 无法打开源文件:“....\cocos2d\cocos\2d\platform\wp8-xaml\cpp\DirectXBase.cpp”: No such file or directory F:\cyuyan\Cocos2d\HelloCpp\proj.wp8-xaml\HelloCppComponent\c1xx HelloCppComponent
但是我查看了一下这个路径下明明都有这些文件，为什么打不开，郁闷呀，求大神赐教