Odd... with class names like that, you should not see this error. However, this should only be a warning when _DEBUG is defined.
you can try this but just a heads up, it did not work for me when I tried it. Also, you may run into errors because of the keywords of vector and string being used in the include. Not sure on that.
#ifdef _DEBUG
#define vector A
#define string B
#endif
#include <vector>
#include <string>
typedef vector < string > StringVector;