title: Error inflating Fragment in Dialog the second time
body: <p>I have the following code in an Activity that starts a dialog for a layout that contains a fragment. </p>
  
  <pre><code>...
  case R.id.pick_resource:
          dialog = new Dialog(this);
          dialog.setContentView(R.layout.resource_picker);
          dialog.setCancelable(true);
          dialog.setTitle("Pick a resource");
          dialog.show();
  </code></pre>
  
  <p>This works very well the first time after application start, but when the dialog is quit and later called again, I get this stack trace:</p>
  
  <pre><code>08-10 10:47:33.990: ERROR/AndroidRuntime(26521): FATAL EXCEPTION: main
          android.view.InflateException: Binary XML file line #7: Error inflating class fragment
          at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:688)
          at android.view.LayoutInflater.rInflate(LayoutInflater.java:724)
          at android.view.LayoutInflater.inflate(LayoutInflater.java:479)
          at android.view.LayoutInflater.inflate(LayoutInflater.java:391)
          at android.view.LayoutInflater.inflate(LayoutInflater.java:347)
          at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:224)
          at android.app.Dialog.setContentView(Dialog.java:449)
          at org.rhq.pocket.StartActivity.onOptionsItemSelected(StartActivity.java:118)
          at android.app.Activity.onMenuItemSelected(Activity.java:2390)
          at com.android.internal.policy.impl.PhoneWindow.onMenuItemSelected(PhoneWindow.java:852)
          at com.android.internal.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:153)
          at com.android.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:956)
          at com.android.internal.view.menu.ActionMenuView.invokeItem(ActionMenuView.java:174)
          at com.android.internal.view.menu.ActionMenuItemView.onClick(ActionMenuItemView.java:85)
          at android.view.View.performClick(View.java:3100)
          at android.view.View$PerformClick.run(View.java:11644)
          at android.os.Handler.handleCallback(Handler.java:587)
          at android.os.Handler.dispatchMessage(Handler.java:92)
          at android.os.Looper.loop(Looper.java:126)
          at android.app.ActivityThread.main(ActivityThread.java:3997)
          at java.lang.reflect.Method.invokeNative(Native Method)
          at java.lang.reflect.Method.invoke(Method.java:491)
          at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
          at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
          at dalvik.system.NativeStart.main(Native Method)
          Caused by: java.lang.IllegalArgumentException: Binary XML file line #7: Duplicate id 0x7f090007, tag null, or parent id 0xffffffff with another fragment for org.rhq.pocket.ResourcePickerFragement
          at android.app.Activity.onCreateView(Activity.java:4089)
          at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:664)
          ... 24 more
  </code></pre>
  
  <p>Any idea, what may cause this exception? Do I have to unload the fragment somehow? </p>