CCFileUtils searchPath problems

I am using cocos2dx 2.2.3, the latest stable version on windows
I am using visual studio 2012 to code.

I am trying to do multiresolution stuff for android and am following this tutorial exactly as it is:
http://www.cocos2d-x.org/wiki/Multi_resolution_support

In this tutorial I am having issues with the following block:

// if the frame's height is larger than the height of medium resource size, select large resource.
    if (frameSize.height > mediumResource.size.height)
    { 
        searchPath.push_back(largeResource.directory);
        pDirector->setContentScaleFactor(largeResource.size.height/designResolutionSize.height);
    }

In my program, I cannot get the “searchPath.push_back(largeResource.directory);”
section to work for me. I get the error that searchPath is undefined. Why is this? I have tried using #include CCFileUtils.h header but it says it cannot find the file. Am I doing something wrong?

Help? Anyone? D: