SFML VertexArray not member of sf - c++

Question

I have the following program for drawing a triangle with vertex arrays, as described in SFML tutorials.
#include <SFML/Graphics.hpp>
#include <iostream>
int main()
{
try{
sf::RenderWindow Mywindow(sf::VideoMode(800,600),"TriColor Triangle!");
sf::VertexArray triangle(sf::Triangles, 3);
triangle[0].position = sf::Vector2f(5,5);
triangle[1].position = sf::Vector2f(50,5);
triangle[2].position = sf::Vector2f(50,50);
triangle[0].color = sf::Color::Red;
triangle[1].color = sf::Color::Blue;
triangle[2].color = sf::Color::Green;
Mywindow.draw(triangle);
}
catch( const std::runtime_error& e)
{
std::cout << e.what() << std::endl;
std::cin.ignore();
return EXIT_FAILURE;
}
std::cin.ignore();
return EXIT_SUCCESS;
}
The Makefile for compilation I am using is the following:
all: exe
exe: main.o
g++ main.o -o exe -lsfml-graphics -lsfml-window -lsfml-system
main.o: main.cpp
g++ -c main.cpp
The follwing error is being displayed:
make
g++ -c main.cpp
main.cpp: In function ‘int main()’:
main.cpp:11:2: error: ‘VertexArray’ is not a member of ‘sf’
main.cpp:11:18: error: expected ‘;’ before ‘triangle’
main.cpp:13:2: error: ‘triangle’ was not declared in this scope
main.cpp:21:11: error: ‘class sf::RenderWindow’ has no member named ‘draw’
main.cpp:23:33: error: expected unqualified-id before ‘&’ token
main.cpp:23:33: error: expected ‘)’ before ‘&’ token
main.cpp:23:33: error: expected ‘{’ before ‘&’ token
main.cpp:23:35: error: ‘e’ was not declared in this scope
main.cpp:23:36: error: expected ‘;’ before ‘)’ token
make: *** [main.o] Error 1
I don't understand why it is saying VertexArray not member of sf!

Answer 1

You must provide a path to the SFML lib dir and a path to the SFML include dir.
Like this:
"-IC:\\Path\\to\\your\\project\\your-lib-sub-dir\\SFML-2.1\\include"
"-LC:\\Path\\to\\your\\project\\your-lib-sub-dir\\SFML-2.1\\lib"
Another thing, to be able to see something, you should suround your draw call with something like this:
while(1){
Mywindow.clear(sf::Color::Black);
Mywindow.draw(triangle);
Mywindow.display();
}