Including C++ Library in Ubuntu/Netbeans

Question

I have the SFML library in usr/include/ and if I want to inlcude it, I get the error, that the directory was not found.

I am using Netbeans on Ubuntu and in Tools/Options/C++/ the correct Directory of SFML is included.

Anyone know what the matter could be?

#include <SFML/Graphics.hpp>

int main()
{
    sf::RenderWindow window(sf::VideoMode(200, 200), "SFML works!");
    sf::CircleShape shape(100.f);
    shape.setFillColor(sf::Color::Green);

    while (window.isOpen())
    {
        sf::Event event;
        while (window.pollEvent(event))
        {
            if (event.type == sf::Event::Closed)
                window.close();
        }

        window.clear();
        window.draw(shape);
        window.display();
    }

    return 0;
}

cd '/home/user/NetBeansProjects/erstertest' /usr/bin/make -f Makefile CONF=Debug "/usr/bin/make" -f nbproject/Makefile-Debug.mk QMAKE= SUBPROJECTS= .build-conf make[1]: Entering directory '/home/user/NetBeansProjects/erstertest' "/usr/bin/make" -f nbproject/Makefile-Debug.mk dist/Debug/GNU-Linux/erstertest make[2]: Entering directory '/home/user/NetBeansProjects/erstertest' mkdir -p dist/Debug/GNU-Linux g++ -o dist/Debug/GNU-Linux/erstertest build/Debug/GNU-Linux/main.o build/Debug/GNU-Linux/main.o: In function main': /home/user/NetBeansProjects/erstertest/main.cpp:5: undefined reference tosf::String::String(char const*, std::locale const&)' /home/user/NetBeansProjects/erstertest/main.cpp:5: undefined reference to sf::VideoMode::VideoMode(unsigned int, unsigned int, unsigned int)' /home/user/NetBeansProjects/erstertest/main.cpp:5: undefined reference tosf::RenderWindow::RenderWindow(sf::VideoMode, sf::String const&, unsigned int, sf::ContextSettings const&)' /home/user/NetBeansProjects/erstertest/main.cpp:6: undefined reference to sf::CircleShape::CircleShape(float, unsigned long)' /home/user/NetBeansProjects/erstertest/main.cpp:7: undefined reference tosf::Color::Green' /home/user/NetBeansProjects/erstertest/main.cpp:7: undefined reference to sf::Shape::setFillColor(sf::Color const&)' /home/user/NetBeansProjects/erstertest/main.cpp:9: undefined reference tosf::Window::isOpen() const' /home/user/NetBeansProjects/erstertest/main.cpp:12: undefined reference to sf::Window::pollEvent(sf::Event&)' /home/user/NetBeansProjects/erstertest/main.cpp:15: undefined reference tosf::Window::close()' /home/user/NetBeansProjects/erstertest/main.cpp:18: undefined reference to sf::Color::Color(unsigned char, unsigned char, unsigned char, unsigned char)' /home/user/NetBeansProjects/erstertest/main.cpp:18: undefined reference tosf::RenderTarget::clear(sf::Color const&)' /home/user/NetBeansProjects/erstertest/main.cpp:19: undefined reference to sf::RenderStates::Default' /home/user/NetBeansProjects/erstertest/main.cpp:19: undefined reference tosf::RenderTarget::draw(sf::Drawable const&, sf::RenderStates const&)' /home/user/NetBeansProjects/erstertest/main.cpp:20: undefined reference to sf::Window::display()' /home/user/NetBeansProjects/erstertest/main.cpp:5: undefined reference tosf::RenderWindow::~RenderWindow()' /home/user/NetBeansProjects/erstertest/main.cpp:24: undefined reference to sf::RenderWindow::~RenderWindow()' /home/user/NetBeansProjects/erstertest/main.cpp:5: undefined reference tosf::RenderWindow::~RenderWindow()' build/Debug/GNU-Linux/main.o: In function sf::CircleShape::~CircleShape()': /usr/include/SFML/Graphics/CircleShape.hpp:41: undefined reference to vtable for sf::CircleShape' /usr/include/SFML/Graphics/CircleShape.hpp:41: undefined reference to vtable for sf::CircleShape' /usr/include/SFML/Graphics/CircleShape.hpp:41: undefined reference to sf::Shape::~Shape()' collect2: error: ld returned 1 exit status nbproject/Makefile-Debug.mk:62: recipe for target 'dist/Debug/GNU-Linux/erstertest' failed make[2]: * [dist/Debug/GNU-Linux/erstertest] Error 1 make[2]: Leaving directory '/home/user/NetBeansProjects/erstertest' nbproject/Makefile-Debug.mk:59: recipe for target '.build-conf' failed make[1]: * [.build-conf] Error 2 make[1]: Leaving directory '/home/user/NetBeansProjects/erstertest' nbproject/Makefile-impl.mk:39: recipe for target '.build-impl' failed make: *** [.build-impl] Error 2