title: AndroidPocketSphinx: build path contains duplicate entry: 'src' for project
body: <p>I am trying to create a project (on eclipse ADT) from an existing project already unzipped into the workplace.</p>
  
  <p>I am basically following the instructions in:</p>
  
  <p><a href="http://cmusphinx.sourceforge.net/2011/05/building-pocketsphinx-on-android/" rel="nofollow noreferrer">http://cmusphinx.sourceforge.net/2011/05/building-pocketsphinx-on-android/</a></p>
  
  <p>But as soon as it imported the project, I received this unclear error message:</p>
  
  <pre><code>build path contains duplicate entry: 'src' for project 'AndroidPocketSphinx'
  </code></pre>
  
  <p>Well, I checked the directory tree: There is only one 'src' subdirectory in there.</p>
  
  <p>I also found a similar post <a href="https://stackoverflow.com/q/14278884">here</a> but the <a href="https://stackoverflow.com/a/16786969">suggested solution</a> cannot be found in my environment. That is, a Target Name is <em>already checked</em> (Android is not under Resource, BTW, it's an optical illusion). So that can't be the problem.</p>
  
  <p>Interestingly, the project does show up in Package Explorer:</p>
  
  <p>With no errors, only 19 warnings.</p>
  
  <p>The vast majority of the warnings are for unused imports, values and fields so I can ignore them, but I don't understand the following warning:</p>
  
  <pre><code>Description Resource    Path    Location    Type
  Build path specifies execution environment J2SE-1.3. There are no JREs installed in the workspace that are strictly compatible with this environment.   AndroidPocketSphinx     Build path  JRE System Library Problem
  </code></pre>
  
  <p>So my questions are:</p>
  
  <ol>
  <li><strong>Why</strong> am I receiving the error <em>"build path contains duplicate entry: 'src' for project"</em>?</li>
  <li>How do I fix that J2SE-1.3 execution environment warning?</li>
  </ol>
  
  <p>Thanks</p>
  
  <p><strong>Update:</strong> This is the content of the project's <code>.classpath</code> file:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;classpath&gt;
      &lt;classpathentry kind="src" path="src"&gt;
          &lt;attributes&gt;
              &lt;attribute name="org.eclipse.jdt.launching.CLASSPATH_ATTR_LIBRARY_PATH_ENTRY" value="PocketSphinxDemo/libs/armeabi"/&gt;
          &lt;/attributes&gt;
      &lt;/classpathentry&gt;
      &lt;classpathentry kind="src" path="gen"/&gt;
      &lt;classpathentry kind="src" path="jni"/&gt;
      &lt;classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/&gt;
      &lt;classpathentry kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/4"/&gt;
      &lt;classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.3"/&gt;
      &lt;classpathentry kind="lib" path="libs/LIUM_SpkDiarization-3.1.jar"/&gt;
      &lt;classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.LIBRARIES"/&gt;
      &lt;classpathentry kind="output" path="bin/classes"/&gt;
  &lt;/classpath&gt;
  </code></pre>