title: missing project.properties file error
body: <p>I'm new to Android development. As I'm learning, I've used a few of the sample projects provided with the Android SDK. I have already had the ApiDemos running on the emulator, but when I went to run it today (now yesterday) I have these 3 errors.</p>
  
  <blockquote>
    <p>Description   </p>
    
    <p>(1) Project has no project.properties file! Edit the project properties to set one.  </p>
    
    <p>(2) The project was not built since its build path is incomplete. Cannot find the class >file for java.lang.Object. Fix the build path then try building this project    </p>
    
    <p>(3) The type java.lang.Object cannot be resolved. It is indirectly referenced from required .class files</p>
  </blockquote>
  
  <p>I have looked in the ApiDemos project folder in my workspace for the project.properties file and it does exist.</p>
  
  <p>Here's what I've tried multiple times...
  -fix project properties
  -clean the project
  -delete the project and re-create it</p>
  
  <p>Please forgive if this seems too simple. I hope it is a simple problem. I'm just overwhelmed by the Eclipse IDE, so maybe your answer could help me understand it better. Thanks in advance.</p>