title: How to resolve "Error:Error: ' ' is not a valid resource name character" in Android?
body: <blockquote>
  <p>Error:Error: ' ' is not a valid resource name character</p>
  <p>Error:Execution failed for task ':app:mergeDebugResources'.**</p>
  <p>C:\Users\Sushant\Desktop\AndroidScientificCalculator\app\src\main\res\values\colors.xml: Error: ' ' is not a valid resource name character</p>
  </blockquote>
  <p>How can I correct my errors?</p>
  <p><a href="https://i.stack.imgur.com/LeEtv.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/LeEtv.png" alt="enter image description here" /></a></p>
  <p>Link for Project Files:</p>
  <p><a href="https://drive.google.com/open?id=0BwjnJ7qmzQucZV82ODVLUmdVcTg" rel="nofollow noreferrer">https://drive.google.com/open?id=0BwjnJ7qmzQucZV82ODVLUmdVcTg</a></p>
  <p>.rar file Link:</p>
  <p>(<a href="https://drive.google.com/open?id=0BwjnJ7qmzQucNDlBc3Y2T2pLV2c" rel="nofollow noreferrer">https://drive.google.com/open?id=0BwjnJ7qmzQucNDlBc3Y2T2pLV2c</a>)</p>