title: Eclipse - Android - Invalid layout of java.lang.String at value
body: <p>Good morning,</p>
  
  <p>I have installed Eclipse and the plug in Android ADT.
  I have created a new android project which is the classical : </p>
  
  <pre><code>package com.example.test_android_2;
  
  import android.support.v7.app.ActionBarActivity;
  import android.os.Bundle;
  import android.view.Menu;
  import android.view.MenuItem;
  
  public class MainActivity extends ActionBarActivity {
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
  }
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate the menu; this adds items to the action bar if it is present.
      getMenuInflater().inflate(R.menu.main, menu);
      return true;
  }
  
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
      // Handle action bar item clicks here. The action bar will
      // automatically handle clicks on the Home/Up button, so long
      // as you specify a parent activity in AndroidManifest.xml.
      int id = item.getItemId();
      if (id == R.id.action_settings) {
          return true;
      }
      return super.onOptionsItemSelected(item);
  }
  </code></pre>
  
  <p>}</p>
  
  <p>But when I run this code, there are the following things in the console window : </p>
  
  <pre><code>Invalid layout of java.lang.String at value
  Error occurred during initialization of VM
  Invalid layout of preloaded class: use -XX:+TraceClassLoading to see the    origin of the problem class
  </code></pre>
  
  <p>There are no errors in the error window and nothing is happening. My connected device is not detected.</p>
  
  <p>When i click on "Run as", there is no item (only "none applicable")</p>
  
  <p>There is a problem of installation of Eclipse or ADT Android ?</p>
  
  <p>Can you help me please ?</p>
  
  <p>thanks</p>