wcout doesnt work, only in qtcreator, g++ runs fine

Im trying to run this code in QtCreator

void Core::Solve(wstring wsEquation)
{
wstring::iterator i = wsEquation.begin();
while(i!=wsEquation.end())

Unknown macro: { wcout << *i; i++; }

};

compiling it in netbeans runs ok.

but in qtcreator it doesnt prints the wstring and show this kind of messages in the application output:

(Internal error: pc 0x11e1a0 in read in psymtab, but not in symtab.)