I am not able to run a node.

edit

I am running ros kinetic on ubuntu 16.

While running a file hello_world.cpp, I get the following error

/media/ammar/New Volume/December/ros_directory/src/agitr_book/src/hello_world.cpp: line 2: syntax error near unexpected token `('
/media/ammar/New Volume/December/ros_directory/src/agitr_book/src/hello_world.cpp: line 2: `int main (int argc, char **argv)'

This is the code in hello_world.cpp

#include "ros/ros.h"
int main (int argc, char **argv)
{
    //intializes ros client library
    //last parameter is a string containing
    //deafult name of the node
    //can be overwridden by a launch file
    //call this once at the beginning of the program
    ros::init(argc, argv, "hello_ros");


    //establishes this program as a ros node
    //nh is the main mechanism that the program
    //will use to interact with the ROS system
    //creating this object registers the program
    //as a node at ros master
    ros::NodeHandle nh;


    //generates an informational message
    //send to console screen
    ROS_INFO_STREAM("HELLO_ROS");
}

I don't think, there is anything wrong the code as I am following it along with a book. I believe the problem is with the #include line but i don't know what?? If anyone could help me, it will be appreciated.