Runtimeexception: Your Content Must Have a Listview Whose Id Attribute Is 'Android.R.Id.List'

Your content must have a ListView whose id attribute is 'android.R.id.list'

Rename the id of your ListView like this,

<ListView android:id="@android:id/list"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"/>

Since you are using ListActivity your xml file must specify the keyword android while mentioning to a ID.

If you need a custom ListView then instead of Extending a ListActivity, you have to simply extend an Activity and should have the same id without the keyword android.

java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list'

The problem is here :

android:id="@+id/list"

you are adding a new id for your ListView but ListFragment needs a default Android ListView Id

change your ListView Id to :

<ListView
   android:id="@id/android:list"
   android:layout_width="match_parent"
   android:layout_height="wrap_content" />

your content must have a listview whose id attribute is 'android.r.id.list'

Your listView with id = "@android:id/list" must be part of activity, not a fragment. But in your code your list view is part of fragment. You can use common activity instead of listActivity and ListFragment (as parent of your PlaceholderFragment class). Or you can move your list from your fragment to your activity.

Android listview error: Your content must have a ListView whose id attribute is 'android.R.id.list' but i have two listviews

Problem with your Activity. May be you extend ListActivity.

You have to extend an Activity will resolve your issue

Second solutions is
define id as below format

<ListView 
    android:id="@android:id/list"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/>

java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list'- error

Try this..

Your using ListActivity then id for your ListView in your layout should be @android:id/list

<?xml version="1.0" encoding="UTF-8"?>
<ListView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >

</ListView>

and also Remove ListView listView = (ListView) findViewById(R.id.tourList); then

 // Get listview
ListView lv = getListView();
tourNumberListAdapter = new TourNumberListAdapter(this, cursorTourNumberInfo);
setListAdapter(tourNumberListAdapter);

lv.setOnItemClickListener(new OnItemClickListener() {

ListView whose id attribute is 'android.R.id.list' Error when I have the ListView id set correctly

android:id="@android:id/list" works perfectly, My issue was I had a Splash screen that inherited a base class which was inheriting ListActivity and had no ListView defined for the splash screen activity. I have altered the SplashScreen to just inherit Activity. All works as expected.

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