title: GlassFish gives an error when launching a JRuby application from the admin console
body: <p>In GlassFish, after I click on launch, I am getting error on the following URL:
  <a href="http://localhost:4848/common/applications/webApplicationLinks.jsf?appID=sk&amp;contextRoot=/sk" rel="nofollow noreferrer">http://localhost:4848/common/applications/webApplicationLinks.jsf?appID=sk&amp;contextRoot=/sk</a></p>
  
  <p>When I deployed my WAR file and clicked on the launch link, I am getting an error in the browser. It's showing <a href="https://i.stack.imgur.com/ANrGO.png" rel="nofollow noreferrer">two links</a>, </p>
  
  <p><a href="https://i.stack.imgur.com/ANrGO.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ANrGO.png" alt="enter image description here"></a></p>
  
  <p>and when I clicked a link, it's giving me this <a href="https://i.stack.imgur.com/i140U.png" rel="nofollow noreferrer">error</a>.</p>
  
  <p><a href="https://i.stack.imgur.com/i140U.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/i140U.png" alt="enter image description here"></a></p>