title: activitythread.performlaunchactivity(activitythread$activityclientrecord intent) source not found
body: <p>then when i press f8 a  i get : ZygoteInit$methodandargscaller.run() source not found</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.example.copyup"
  android:versionCode="1"
  android:versionName="1.0" &gt;
  
  &lt;uses-sdk
      android:minSdkVersion="8"
      android:targetSdkVersion="17" /&gt;
  
  &lt;application
      android:allowBackup="true"
      android:icon="@drawable/ic_launcher"
      android:label="@string/app_name"
      android:theme="@style/AppTheme" &gt;
      &lt;activity
          android:name="com.example.copyup.MainActivity"
          android:label="copy up" &gt;
          &lt;intent-filter&gt;
              &lt;action android:name="android.intent.action.MAIN" /&gt;
              &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
          &lt;/intent-filter&gt;
      &lt;/activity&gt;
  
  
  
  
  
       &lt;activity 
          android:name=".Game"
          android:label="Copy Up"&gt;         
      &lt;/activity&gt;
                      &lt;activity 
          android:name=".Rules"
          android:label="Copy Up!"&gt;         
      &lt;/activity&gt;
              &lt;activity 
          android:name=".Scores"
          android:label="Copy Up!"&gt;         
      &lt;/activity&gt;
                      &lt;activity 
          android:name=".LearnCircle"
          android:label="Copy Up!"&gt;         
      &lt;/activity&gt;
                              &lt;activity 
          android:name=".LearnHoriz"
          android:label="Copy Up!"&gt;         
      &lt;/activity&gt;
                              &lt;activity 
          android:name=".LearnVert"
          android:label="Copy Up!"&gt;         
      &lt;/activity&gt;
                              &lt;activity 
          android:name=".LearnMenu"
          android:label="Copy Up!"&gt;         
      &lt;/activity&gt;
   &lt;/application&gt;
  
  &lt;/manifest&gt;
  </code></pre>
  
  <p>and my code:</p>
  
  <pre><code>package com.example.copyup;
  
  
  import android.os.Bundle;
  import android.app.Activity;
  import android.content.Intent;
  import android.view.View;
  import android.widget.Button;
  
  public class MainActivity extends Activity {
  Button start, rules, hs, learn;
  
  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      linktoxml();
  
  
  start.setOnClickListener(new View.OnClickListener() {
          public void onClick(View v) {
  
              Intent myIntent = new Intent(MainActivity.this, Game.class);
              MainActivity.this.startActivity(myIntent);
  
          }
  
      });
      /*
      rules.setOnClickListener(new View.OnClickListener() {
          public void onClick(View v) {
  
              Intent myIntent = new Intent(MainActivity.this, Rules.class);
              MainActivity.this.startActivity(myIntent);
  
          }
  
      });
  
      hs.setOnClickListener(new View.OnClickListener() {
          public void onClick(View v) {
  
              Intent myIntent = new Intent(MainActivity.this, Scores.class);
              MainActivity.this.startActivity(myIntent);
  
          }
  
      });
  
      learn.setOnClickListener(new View.OnClickListener() {
          public void onClick(View v) {
  
              Intent myIntent = new Intent(MainActivity.this, LearnMenu.class);
              MainActivity.this.startActivity(myIntent);
  
          }
  
      });*/
  
      //show shape, take reading after 4 seconds, compare with other, if true   next, if false, end game
      //dont make it complex with time reduce yet!!
  }
  
  
  private void linktoxml() {
      start = (Button) findViewById(R.id.bcstart);
      rules = (Button) findViewById(R.id.brules);
      hs = (Button) findViewById(R.id.bhs);
      learn = (Button) findViewById(R.id.blearn);
  
  }
  }
  </code></pre>
  
  <p>I have tried cleaning the project, re-writing the manifest and everything i can possible think of. It works if i comment out the links to the buttons in the code and leave them in the manifest but the moment i uncommnet them i get these errors, please help!!!</p>