title: Android SDK Manager failed to parse xml
body: <p>after several month when i tried to open Android SDK manager i realized it's not loading any of packages that i didn't install or have updates and just showing already installed packages (like there is not any internet connection), but there isn't any connection error shows in log like image bellow  </p>
  
  <p><a href="https://i.stack.imgur.com/3yBr3.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3yBr3.png" alt="log"></a>  </p>
  
  <p>i checked Official Add-on site list and it's Empty  </p>
  
  <p><a href="https://i.stack.imgur.com/TARZ5.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/TARZ5.png" alt="add-on site"></a>  </p>
  
  <p>i checked sdkmanager.bat file in tools\bin path and i got this error that can't parse xml file  </p>
  
  <p><a href="https://i.stack.imgur.com/RPPbX.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/RPPbX.png" alt="xml"></a>  </p>
  
  <p>note that i can access the xml file manually when enter it's path in browser.<br>
  is there anything i can do to fix this?</p>
  
  <p><strong>UPDATE</strong>  </p>
  
  <p>I figured out the reason of this problem and i added an answer for it.</p>