title: Build Path: Invalid ZIP archive
body: <p>After searching for an answer to my problem in vain, I would be grateful if you guys could help me out.</p>
  
  <p>I'm trying to add sounds to a little game I'm coding. I copy/paste the sound file in the Java project through eclipse, then go right click -> Build Path -> Add to Build Path.</p>
  
  <p>Now this is how I learned it and haven't heard of any alternative so far, so I'm gonna guess this is the correct way to do it. However, as soon as I add it to the Build Path, I get an error saying "Invalid ZIP archive: soundname...".</p>
  
  <p>First of all, why is it considered a ZIP file when it actually is a WAV file?
  Should I add all of my files to an archive before adding them to the build path?</p>
  
  <p>I tried changing my execution environment, upgrading it, upgrading eclipse, etc. but no success.</p>
  
  <p>I think it's useful to add that I tried this method on my laptop and it works just fine. I just have no idea what is the problem.</p>
  
  <p>Help please!</p>