ApiDemos 3.0/3.1 won't build because of unresolved types
<p>I'm trying to build ApiDemos for API levels 11 (3.0) and 12 (3.1). I've updated to the latest version both tools (revision 11) and platform tools (revision 4). In addition, I have the compatibility package installed.</p>

<p>When I try to build the ApiDemos project I get thousands of errors, of which Eclipse shows 100 of the following:</p>

<pre><code>ActionBar cannot be resolved to a type  ActionBarDisplayOptions.java    /ApiDemos3.1/src/com/example/android/apis/app   line 34 Java Problem

ActionMode cannot be resolved to a type Grid3.java  /ApiDemos3.1/src/com/example/android/apis/view  line 133    Java Problem

alertDialogIcon cannot be resolved or is not a field    AlertDialogSamples.java /ApiDemos3.1/src/com/example/android/apis/app   line 82 Java Problem

animator cannot be resolved or is not a field   FragmentHideShow.java   /ApiDemos3.1/src/com/example/android/apis/app   line 55 Java Problem

Animator cannot be resolved to a type   AnimationLoading.java   /ApiDemos3.1/src/com/example/android/apis/animation line 73 Java Problem
</code></pre>

<p>I need help getting the samples to build properly. Thanks.</p>
