Hi John ... great it's don't show me error messege , but the new problem it's now print "Hello World" , this is a code #include <iostream> int main() { std::cout << "Hello World"; } -- View this message in context: http://www.nabble.com/can%27t-include-iostream.h-t1445505.html#a3904340 Sent from the gcc - Help forum at Nabble.com.