title: Android App tutorial not working
body: <p>i am new to android. when i try to compile helloworld program in ADT i get the following error:</p>
  
  <blockquote>
    <blockquote>
      <p>[2013-04-12 13:36:40 - Hello] /var/www/html/android/adt-bundle-linux-x86_64-20130219/sdk/platform-tools/aapt: error while loading shared libraries: libz.so.1: cannot open shared object file: No such file or directory.</p>
    </blockquote>
  </blockquote>
  
  <p>i used os:<strong>centos 64 bit</strong></p>
  
  <p>Any help will be appreciated. </p>