title: Ant debug and ant release failed
body: <p>I am trying to generate apk on command line using ant. I am able to use ant clean but for ant debug and ant release command I am getting following error. </p>
  
  <blockquote>
    <p>BUILD FAILED</p>
    
    <p>C:\Android\sdk\tools\ant\build.xml:649: The following error occurred while executing this line:
        C:\Android\sdk\tools\ant\build.xml:694: Execute failed: java.io.IOException: Cannot run program "C:\Workspace\SampleApp\${aapt}": CreateProcess error=2, Th
        e system cannot find the file specified
                at java.lang.ProcessBuilder.start(ProcessBuilder.java:1047)
                at java.lang.Runtime.exec(Runtime.java:617)
                at org.apache.tools.ant.taskdefs.launcher.Java13CommandLauncher.exec(Jav
        a13CommandLauncher.java:58)...</p>
  </blockquote>
  
  <p>On line  build.xml:694 <code>proguardFile="${out.absolute.dir}/proguard.txt"&gt;</code> line is present. I am using Eclipse Juno and build target is 22 (Lollipop).
  Any help is appreciated.</p>