title: Basic call using linphone core
body: <p>I have done Libphone android, and Ios sdk projects build and integration with my application successfully.</p>
  
  <p><a href="https://i.stack.imgur.com/b8r9V.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/b8r9V.png" alt="enter image description here"></a></p>
  
  <p>I am trying to run the samples that I got from the downloaded Linphone source code for e.g coreapi/help/helloworld.c. I'm getting an error as shown in attachment. Please guild me how to run these samples.</p>