title: Open web service explorer with http error 500 in eclipse
body: <p>I am using eclipse version <strong>Eclipse Java EE IDE for Web Developers</strong> Luna Release.</p>
  
  <p>When I click <strong><em>Launch the Web Service Explorer</em></strong> under the <strong><em>Run</em></strong> menu, the explorer that eclipse has in its own turns out to be <strong>HTTP ERROR: 500</strong>. Don't it be a web page instead of reminding me of the error?</p>
  
  <p>I do not know how to solve it.</p>
  
  <p>I find out this problem when I try to publish my first web project with Tomcat installed in the eclipse. However it shows the http error 500.:(</p>
  
  <p>Hope someone can help me~</p>
  
  <p>Thank you in advance!</p>