title: Application bundle Mac OS X Leopard
body: <p>I had a working application bundle on Mac OS X Tiger. I was easily able to just replace the jar file and everything worked as i made changes. I take that app bundle now, and when it is on Leopard, I get the error message along the lines of "Cannot open this application because it is not supported on this architecture". </p>
  
  <p>I assume this is because Tiger is 32-bit and Leopard is 64-bit. Is there a way to make this same app bundle work on Leopard? Or do I have to make an entirely new one? I am not a Mac guy, so am limited in what to do from here.</p>