title: Android fragment classnotfoundexception
body: <p>I am following following link to create fragment in anadroid</p>
  
  <p><a href="http://www.vogella.com/articles/Android/article.html#fragments" rel="nofollow">http://www.vogella.com/articles/Android/article.html#fragments</a></p>
  
  <p>but it always gives classnotfound exception.Please guide me on how to resolve it ?</p>
  
  <p>Logcat :</p>
  
  <pre><code>07-25 14:45:22.511: E/AndroidRuntime(497): FATAL EXCEPTION: main
  07-25 14:45:22.511: E/AndroidRuntime(497): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.fragment/com.example.fragment.FragmentProjectActivity}: android.view.InflateException: Binary XML file line #7: Error inflating class fragment
  07-25 14:45:22.511: E/AndroidRuntime(497):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at android.app.ActivityThread.access$2300(ActivityThread.java:125)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at android.os.Handler.dispatchMessage(Handler.java:99)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at android.os.Looper.loop(Looper.java:123)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at android.app.ActivityThread.main(ActivityThread.java:4627)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at java.lang.reflect.Method.invokeNative(Native Method)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at java.lang.reflect.Method.invoke(Method.java:521)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at dalvik.system.NativeStart.main(Native Method)
  07-25 14:45:22.511: E/AndroidRuntime(497): Caused by: android.view.InflateException: Binary XML file line #7: Error inflating class fragment
  07-25 14:45:22.511: E/AndroidRuntime(497):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:576)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at android.view.LayoutInflater.rInflate(LayoutInflater.java:618)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:198)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at android.app.Activity.setContentView(Activity.java:1647)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at com.example.fragment.FragmentProjectActivity.onCreate(FragmentProjectActivity.java:11)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
  07-25 14:45:22.511: E/AndroidRuntime(497):  ... 11 more
  07-25 14:45:22.511: E/AndroidRuntime(497): Caused by: java.lang.ClassNotFoundException: android.view.fragment in loader dalvik.system.PathClassLoader[/data/app/com.example.fragment-2.apk]
  07-25 14:45:22.511: E/AndroidRuntime(497):  at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at java.lang.ClassLoader.loadClass(ClassLoader.java:573)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at java.lang.ClassLoader.loadClass(ClassLoader.java:532)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at android.view.LayoutInflater.createView(LayoutInflater.java:466)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at android.view.LayoutInflater.onCreateView(LayoutInflater.java:544)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:66)
  07-25 14:45:22.511: E/AndroidRuntime(497):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:563)
  07-25 14:45:22.511: E/AndroidRuntime(497):  ... 20 more
  </code></pre>