title: How to fix "Empty paragraph passed to '@sa' command" when using GLFW
body: <p>I have been trying to create a basic app in xcode using glfw and glew but i always get the same error: &quot;Empty paragraph passed to '@sa' command&quot;.</p>
  <p>What does this error mean and how do I fix it?</p>
  <p>My code is:</p>
  <pre><code>    #include &lt;stdio.h&gt;
  
  #include &lt;GL/glew.h&gt;
  #include &lt;GLFW/glfw3.h&gt;
  
  int main(void)
  {
      GLFWwindow* window;
  
      // Initialize the library
      if (!glfwInit())
          return -1;
  
      // Specify the minimum OpenGL version
      glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
      glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
      glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
      glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
  
      // Create a windowed mode window and its OpenGL context
      window = glfwCreateWindow(640, 480, &quot;Hello World&quot;, NULL, NULL);
      if (!window)
      {
          glfwTerminate();
          return -1;
      }
  
      // Make the window's context current
      glfwMakeContextCurrent(window);
  
      printf(&quot;GL Version: %s&quot;, glGetString(GL_VERSION));
  
      // Loop until the user closes the window
      while (!glfwWindowShouldClose(window))
      {
          // Render here
          glClear(GL_COLOR_BUFFER_BIT);
  
          // Swap front and back buffers
          glfwSwapBuffers(window);
  
          // Poll for and process events
          glfwPollEvents();
      }
  
      glfwTerminate();
      return 0;
  }
  </code></pre>