title: Eclipse C++: Symbol 'std' could not be resolved
body: <p>I am getting this error in the TestExecute.cpp - </p>
  
  <blockquote>
    <p>"Symbol 'std' could not be resolved"</p>
  </blockquote>
  
  <p>CODE</p>
  
  <pre><code>#include &lt;iostream&gt;
  using namespace std;
  </code></pre>
  
  <p>I just created a executable project in Eclipse (in Windows 7) as shown below. It seems like I am selecting a toolchain that is not supported. Is it so? I have installed Cygwin and it is available in preferences.</p>
  
  <p><strong>EDIT</strong>: Based on @RobertoWilko comment, removing the line "using namespace std;
  "  removed the error. But the binary is not created.  "Launch Failed. Binary not found". How to correct this?</p>
  
  <p><img src="https://i.stack.imgur.com/Q0fwR.png" alt="enter image description here"></p>
  
  <p><img src="https://i.stack.imgur.com/3P9fe.png" alt="enter image description here"></p>
  
  <p><img src="https://i.stack.imgur.com/JqRnb.png" alt="enter image description here"></p>
  
  <p><img src="https://i.stack.imgur.com/GKLsq.png" alt="enter image description here"></p>