title: Android.App.Activity - package does not exist
body: <p>I got an andorid project files that are supposed to compile correctly.</p>
  
  <p>I installed the latest eclipse and Andriod ADT plugins.</p>
  
  <p>I then imported the project and right clicked build.xml to run as ANT build. but I got erors on some basic code which I am sure is originating from my misconfigured setup.</p>
  
  <p>I also tried to run it using ANT from the command line. both times I got the same type of errors</p>
  
  <p>What is wrong ?</p>
  
  <pre><code>    Buildfile: /Users/admin/Downloads/moshe-5/build.xml
      init:
      process.annotations:
          [javac] Compiling 9 source files to /Users/admin/Downloads/moshe-5/build/classes
          [javac] /Users/admin/Downloads/moshe-5/src/ti/moshe/CustomAdapter.java:7: package android.app does not exist
          [javac] import android.app.Activity;
          [javac]                   ^
          [javac] /Users/admin/Downloads/moshe-5/src/ti/moshe/CustomAdapter.java:8: package android.content does not exist
          [javac] import android.content.Context;
          [javac]                       ^
          [javac] /Users/admin/Downloads/moshe-5/src/ti/moshe/CustomAdapter.java:9: package android.graphics does not exist
          [javac] import android.graphics.Color;
  </code></pre>