symbol(s) not found for architecture x86_64

[Luorinz]

Got this problem when I tried to create a renderwindow..

Renderwindow window(VideoMode(320, 480), "The game!");

Here is the error log

Undefined symbols for architecture x86_64:
  "sf::RenderWindow::RenderWindow(sf::VideoMode, sf::String const&, unsigned int, sf::ContextSettings const&)", referenced from:
      _main in main.o
  "sf::RenderWindow::~RenderWindow()", referenced from:
      _main in main.o
  "sf::String::String(char const*, std::__1::locale const&)", referenced from:
      _main in main.o
  "sf::VideoMode::VideoMode(unsigned int, unsigned int, unsigned int)", referenced from:
      _main in main.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

[Rosme]

Make sure to follow the tutorial.

You are not linking to SFML. Could also be an architecture mismatch.

[Luorinz]

I'm pretty sure that i've done everything on the tutorial and checked twice. I'm using the latest version of OSX and Xcode, still don't know why.