rapidjson: working code for reading document from file?

rapidjson: working code for reading document from file?

I need a working c++ code for reading document from file using rapidjson:
https://code.google.com/p/rapidjson/
In the wiki it's yet undocumented, the examples unserialize only from
std::string, I haven't a deep knowledge of templates.
I serialized my document into a text file and this is the code I wrote,
but it doesn't compile:
#include "rapidjson/prettywriter.h" // for stringify JSON
#include "rapidjson/writer.h" // for stringify JSON
#include "rapidjson/filestream.h" // wrapper of C stream for
prettywriter as output
[...]
std::ifstream myfile ("c:\\statdata.txt");
rapidjson::Document document;
document.ParseStream<0>(myfile);
the compilation error state: error: 'Document' is not a member of 'rapidjson'
I'm using Qt 4.8.1 with mingw and rapidjson v 0.1 (I already try with
upgraded v 0.11 but the error remain)