title: VSCode: How to add include path of project subDirectory?
body: <p>I just started using VSCode on linux Ubuntu environment and for past one day trying to include some header files from a sub-Directory (the project screen shot is shown below).</p>
  <ol>
  <li><p>I have tired adding the header file path in include path but showing error.(Image below)</p>
  </li>
  <li><p>I also tired by provided complete path e.g. <code>/home/user/Work/Cpp_Test_Project/OpenFace/FaceAnalyser/include/</code> still it couldn't find the header file.</p>
  </li>
  <li><p>Also, If I try to include the header with local path e.g.</p>
  <p><code>#include &lt;OpenFace/LandmarkDetector/LandmarkCoreIncludes.h</code></p>
  </li>
  </ol>
  <p>then all the internally linked header file doesn't work.</p>
  <p><a href="https://i.stack.imgur.com/EOLrw.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/EOLrw.png" alt="enter image description here" /></a></p>
  <p><a href="https://i.stack.imgur.com/xY8ED.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/xY8ED.png" alt="enter image description here" /></a></p>
  <p>any help will be highly appreciated.</p>