title: How can I make Flash Builder 4 launch browser on run?
body: <p>I recently installed Adobe Flash Builder 4 in standalone mode on a new installation of Windows 7 x64.</p>
  <p>I can load and build an existing Flex 4.1 project I have been working on, but when I go to run the project in the browser (Firefox 3.6.15), I get:</p>
  <blockquote>
  <p>'Launching BensApp' has encountered a problem.</p>
  <p>An internal error occurred during: 'Launching BensApp'</p>
  </blockquote>
  <p>Clicking the <em>Details &gt;&gt;</em> button reveals:</p>
  <blockquote>
  <p>java.lang.NullPointerException</p>
  </blockquote>
  <p>My project is creating the SWF and container HTML page as expected, but fails to load the browser.</p>