title: Referenced libraries not being deployed by Eclipse
body: <p>I setup a Google App Engine project in Eclipse. I added a root level folder to contain libraries for my project. I added all of these libraries to the build path for my project. The code compiles without any errors. When I run the project, I get startup errors NoClassDef errors. When I add these libraries manually to the war directory's lib folder, these errors disappear. </p>
  
  <p>Why isn't Eclipse deploying the libraries on my build path for me? Do I need to have a build script in place for Eclipse to run? A build script that will copy my libraries to the war dir's lib folder?  </p>