title: Eclipse: Error exist in active configuration of project "<project_name>"
body: <p>Project has been build successfully, but I got following error message while debugging in "Error in Workspace" pop-up window. </p>
  
  <p>Error in Workspace:</p>
  
  <pre><code>Error exist in active configuration of project "&lt;project_name&gt;". Proceed with launch?
  </code></pre>
  
  <p>I am using following version of Eclipse. </p>
  
  <pre><code>Eclipse IDE for C/C++ Developers
  Version: Helios Service Release 2
  </code></pre>
  
  <p>I've imported this project as "C/C++ > Existing Code as Makefile Project".</p>
  
  <p>Is anyone have any idea how to get rid of this error ?</p>
  
  <p>Please let me know if I've missed something to mention here..</p>